56656505534 has 8 divisors (see below), whose sum is σ = 85526062968. Its totient is φ = 28147817880.

The previous prime is 56656505513. The next prime is 56656505539. The reversal of 56656505534 is 43550565665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56656505539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90217052 + ... + 90217679.

It is an arithmetic number, because the mean of its divisors is an integer number (10690757871).

Almost surely, 2^56656505534 is an apocalyptic number.

56656505534 is a deficient number, since it is larger than the sum of its proper divisors (28869557434).

56656505534 is a wasteful number, since it uses less digits than its factorization.

56656505534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180434890.

The product of its (nonzero) digits is 8100000, while the sum is 50.

The spelling of 56656505534 in words is "fifty-six billion, six hundred fifty-six million, five hundred five thousand, five hundred thirty-four".