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61325605 = 5111115011
BaseRepresentation
bin1110100111110…
…0000100100101
311021101122220201
43221330010211
5111144404410
610030230501
71343154565
oct351740445
9137348821
1061325605
1131686920
1218655431
13c922453
148204da5
1555b583a
hex3a7c125

61325605 has 8 divisors (see below), whose sum is σ = 80280864. Its totient is φ = 44600400.

The previous prime is 61325587. The next prime is 61325609. The reversal of 61325605 is 50652316.

61325605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61325605 - 213 = 61317413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61325609) 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 7 ways as a sum of consecutive naturals, for example, 557451 + ... + 557560.

It is an arithmetic number, because the mean of its divisors is an integer number (10035108).

Almost surely, 261325605 is an apocalyptic number.

It is an amenable number.

61325605 is a deficient number, since it is larger than the sum of its proper divisors (18955259).

61325605 is a wasteful number, since it uses less digits than its factorization.

61325605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115027.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 61325605 is about 7831.0666578698. The cubic root of 61325605 is about 394.3488818878.

Subtracting from 61325605 its reverse (50652316), we obtain a square (10673289 = 32672).

The spelling of 61325605 in words is "sixty-one million, three hundred twenty-five thousand, six hundred five".

Divisors: 1 5 11 55 1115011 5575055 12265121 61325605