56056056051551 has 8 divisors (see below), whose sum is σ = 56489653828608. Its totient is φ = 55622544471000.

The previous prime is 56056056051509. The next prime is 56056056051553. The reversal of 56056056051551 is 15515065065065.

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

It is a cyclic number.

It is not a de Polignac number, because 56056056051551 - 2¹⁸ = 56056055789407 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 56056056051551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56056056051553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20243135 + ... + 22845056.

It is an arithmetic number, because the mean of its divisors is an integer number (7061206728576).

Almost surely, 2^{56056056051551} is an apocalyptic number.

56056056051551 is a deficient number, since it is larger than the sum of its proper divisors (433597777057).

56056056051551 is a wasteful number, since it uses less digits than its factorization.

56056056051551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43098253.

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 56056056051551 in words is "fifty-six trillion, fifty-six billion, fifty-six million, fifty-one thousand, five hundred fifty-one".