61257524556 has 48 divisors (see below), whose sum is σ = 146933111808. Its totient is φ = 19855785600.

The previous prime is 61257524539. The next prime is 61257524561. The reversal of 61257524556 is 65542575216.

61257524556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430260 + ... + 554651.

It is an arithmetic number, because the mean of its divisors is an integer number (3061106496).

Almost surely, 2^61257524556 is an apocalyptic number.

It is an amenable number.

61257524556 is an abundant number, since it is smaller than the sum of its proper divisors (85675587252).

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

61257524556 is a wasteful number, since it uses less digits than its factorization.

61257524556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985062 (or 985060 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 48.

The spelling of 61257524556 in words is "sixty-one billion, two hundred fifty-seven million, five hundred twenty-four thousand, five hundred fifty-six".