56643051562 has 4 divisors (see below), whose sum is σ = 84964577346. Its totient is φ = 28321525780.

The previous prime is 56643051557. The next prime is 56643051583. The reversal of 56643051562 is 26515034665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28335325561 + 28307726001 = 168331^2 + 168249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14160762889 + ... + 14160762892.

Almost surely, 2^56643051562 is an apocalyptic number.

56643051562 is a deficient number, since it is larger than the sum of its proper divisors (28321525784).

56643051562 is a wasteful number, since it uses less digits than its factorization.

56643051562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28321525783.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 56643051562 in words is "fifty-six billion, six hundred forty-three million, fifty-one thousand, five hundred sixty-two".