61597275 has 12 divisors (see below), whose sum is σ = 101840952. Its totient is φ = 32851840.

The previous prime is 61597241. The next prime is 61597303. The reversal of 61597275 is 57279516.

It is not a de Polignac number, because 61597275 - 2⁷ = 61597147 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 410574 + ... + 410723.

It is an arithmetic number, because the mean of its divisors is an integer number (8486746).

Almost surely, 2^61597275 is an apocalyptic number.

61597275 is a deficient number, since it is larger than the sum of its proper divisors (40243677).

61597275 is a wasteful number, since it uses less digits than its factorization.

61597275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821310 (or 821305 counting only the distinct ones).

The product of its digits is 132300, while the sum is 42.

The square root of 61597275 is about 7848.3931476449. The cubic root of 61597275 is about 394.9303407579.

The spelling of 61597275 in words is "sixty-one million, five hundred ninety-seven thousand, two hundred seventy-five".