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61595225 = 525214729
BaseRepresentation
bin1110101011110…
…1111001011001
311021220100202122
43222331321121
5111232021400
610040111025
71345356626
oct352757131
9137810678
1061595225
113185044a
1218765475
13c9b80a3
14827534d
15561a685
hex3abde59

61595225 has 12 divisors (see below), whose sum is σ = 76540860. Its totient is φ = 49171200.

The previous prime is 61595197. The next prime is 61595227. The reversal of 61595225 is 52259516.

It can be written as a sum of positive squares in 6 ways, for example, as 18088009 + 43507216 = 4253^2 + 6596^2 .

It is not a de Polignac number, because 61595225 - 212 = 61591129 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61595227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10661 + ... + 15389.

It is an arithmetic number, because the mean of its divisors is an integer number (6378405).

Almost surely, 261595225 is an apocalyptic number.

It is an amenable number.

61595225 is a deficient number, since it is larger than the sum of its proper divisors (14945635).

61595225 is a wasteful number, since it uses less digits than its factorization.

61595225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5255 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 61595225 is about 7848.2625465768. The cubic root of 61595225 is about 394.9259595241.

The spelling of 61595225 in words is "sixty-one million, five hundred ninety-five thousand, two hundred twenty-five".