56455555497 has 32 divisors (see below), whose sum is σ = 85301631360. Its totient is φ = 32898432000.

The previous prime is 56455555469. The next prime is 56455555511. The reversal of 56455555497 is 79455555465.

It is not a de Polignac number, because 56455555497 - 2⁷ = 56455555369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56455555497.

It is not an unprimeable number, because it can be changed into a prime (56455555397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108247 + ... + 353027.

It is an arithmetic number, because the mean of its divisors is an integer number (2665675980).

Almost surely, 2^56455555497 is an apocalyptic number.

It is an amenable number.

56455555497 is a deficient number, since it is larger than the sum of its proper divisors (28846075863).

56455555497 is a wasteful number, since it uses less digits than its factorization.

56455555497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245065.

The product of its digits is 94500000, while the sum is 60.

The spelling of 56455555497 in words is "fifty-six billion, four hundred fifty-five million, five hundred fifty-five thousand, four hundred ninety-seven".