56561357450 has 96 divisors (see below), whose sum is σ = 120771436800. Its totient is φ = 19534245120.

The previous prime is 56561357449. The next prime is 56561357467. The reversal of 56561357450 is 5475316565.

It is a junction number, because it is equal to n+sod(n) for n = 56561357395 and 56561357404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 946664 + ... + 1004636.

It is an arithmetic number, because the mean of its divisors is an integer number (1258035800).

Almost surely, 2^56561357450 is an apocalyptic number.

56561357450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56561357450 is an abundant number, since it is smaller than the sum of its proper divisors (64210079350).

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

56561357450 is a wasteful number, since it uses less digits than its factorization.

56561357450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58096 (or 58091 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 47.

The spelling of 56561357450 in words is "fifty-six billion, five hundred sixty-one million, three hundred fifty-seven thousand, four hundred fifty".