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61357325 = 524779661
BaseRepresentation
bin1110101000001…
…1110100001101
311021110021102112
43222003310031
5111201413300
610031033405
71343346221
oct352036415
9137407375
1061357325
11316a8737
121866b865
13c933a13
148212781
1555bee35
hex3a83d0d

61357325 has 24 divisors (see below), whose sum is σ = 78804480. Its totient is φ = 47361600.

The previous prime is 61357321. The next prime is 61357337. The reversal of 61357325 is 52375316.

61357325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61357325 - 22 = 61357321 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61357291 and 61357300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61357321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92495 + ... + 93155.

It is an arithmetic number, because the mean of its divisors is an integer number (3283520).

Almost surely, 261357325 is an apocalyptic number.

It is an amenable number.

61357325 is a deficient number, since it is larger than the sum of its proper divisors (17447155).

61357325 is a wasteful number, since it uses less digits than its factorization.

61357325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 792 counting only the distinct ones).

The product of its digits is 18900, while the sum is 32.

The square root of 61357325 is about 7833.0916629387. The cubic root of 61357325 is about 394.4168610539.

Subtracting from 61357325 its reverse (52375316), we obtain a square (8982009 = 29972).

The spelling of 61357325 in words is "sixty-one million, three hundred fifty-seven thousand, three hundred twenty-five".

Divisors: 1 5 25 47 79 235 395 661 1175 1975 3305 3713 16525 18565 31067 52219 92825 155335 261095 776675 1305475 2454293 12271465 61357325