56057770346507 has 4 divisors (see below), whose sum is σ = 56687632934760. Its totient is φ = 55427907758256.

The previous prime is 56057770346429. The next prime is 56057770346569. The reversal of 56057770346507 is 70564307775065.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56057770346507 - 2¹⁸ = 56057770084363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56057770346507.

It is not an unprimeable number, because it can be changed into a prime (56057770376507) 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, 314931293993 + ... + 314931294170.

It is an arithmetic number, because the mean of its divisors is an integer number (14171908233690).

Almost surely, 2^{56057770346507} is an apocalyptic number.

56057770346507 is a deficient number, since it is larger than the sum of its proper divisors (629862588253).

56057770346507 is an equidigital number, since it uses as much as digits as its factorization.

56057770346507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629862588252.

The product of its (nonzero) digits is 129654000, while the sum is 62.

The spelling of 56057770346507 in words is "fifty-six trillion, fifty-seven billion, seven hundred seventy million, three hundred forty-six thousand, five hundred seven".