61455256 has 32 divisors (see below), whose sum is σ = 118578240. Its totient is φ = 29842848.

The previous prime is 61455239. The next prime is 61455271. The reversal of 61455256 is 65255416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77695 + ... + 78481.

It is an arithmetic number, because the mean of its divisors is an integer number (3705570).

Almost surely, 2^61455256 is an apocalyptic number.

It is an amenable number.

61455256 is a deficient number, since it is larger than the sum of its proper divisors (57122984).

61455256 is a wasteful number, since it uses less digits than its factorization.

61455256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1059 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 61455256 is about 7839.3402783653. The cubic root of 61455256 is about 394.6265893735.

The spelling of 61455256 in words is "sixty-one million, four hundred fifty-five thousand, two hundred fifty-six".