61013256 has 32 divisors (see below), whose sum is σ = 160562400. Its totient is φ = 19267200.

The previous prime is 61013243. The next prime is 61013261. The reversal of 61013256 is 65231016.

61013256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66445 + ... + 67356.

It is an arithmetic number, because the mean of its divisors is an integer number (5017575).

Almost surely, 2^61013256 is an apocalyptic number.

It is an amenable number.

61013256 is an abundant number, since it is smaller than the sum of its proper divisors (99549144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61013256 is a wasteful number, since it uses less digits than its factorization.

61013256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133829 (or 133825 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61013256 is about 7811.0982582477. The cubic root of 61013256 is about 393.6782311120.

The spelling of 61013256 in words is "sixty-one million, thirteen thousand, two hundred fifty-six".