61565042 has 24 divisors (see below), whose sum is σ = 116010048. Its totient is φ = 23985720.

The previous prime is 61565033. The next prime is 61565059. The reversal of 61565042 is 24056516.

It is a junction number, because it is equal to n+sod(n) for n = 61564996 and 61565014.

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, 16478 + ... + 19865.

It is an arithmetic number, because the mean of its divisors is an integer number (4833752).

Almost surely, 2^61565042 is an apocalyptic number.

61565042 is a deficient number, since it is larger than the sum of its proper divisors (54445006).

61565042 is a wasteful number, since it uses less digits than its factorization.

61565042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36374 (or 36363 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 61565042 is about 7846.3394012750. The cubic root of 61565042 is about 394.8614415478.

The spelling of 61565042 in words is "sixty-one million, five hundred sixty-five thousand, forty-two".