61565475 has 12 divisors (see below), whose sum is σ = 101788376. Its totient is φ = 32834880.

The previous prime is 61565467. The next prime is 61565501. The reversal of 61565475 is 57456516.

It is not a de Polignac number, because 61565475 - 2³ = 61565467 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410362 + ... + 410511.

Almost surely, 2^61565475 is an apocalyptic number.

61565475 is a deficient number, since it is larger than the sum of its proper divisors (40222901).

61565475 is a wasteful number, since it uses less digits than its factorization.

61565475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820886 (or 820881 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 61565475 is about 7846.3669937112. The cubic root of 61565475 is about 394.8623672604.

The spelling of 61565475 in words is "sixty-one million, five hundred sixty-five thousand, four hundred seventy-five".