56356253545405 has 64 divisors (see below), whose sum is σ = 81169050157056. Its totient is φ = 37083807360000.

The previous prime is 56356253545313. The next prime is 56356253545433. The reversal of 56356253545405 is 50454535265365.

It is not a de Polignac number, because 56356253545405 - 2³⁵ = 56321893807037 is a prime.

It is a super-2 number, since 2×56356253545405² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 56356253545405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2061427 + ... + 10814896.

It is an arithmetic number, because the mean of its divisors is an integer number (1268266408704).

Almost surely, 2^{56356253545405} is an apocalyptic number.

56356253545405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56356253545405 is a deficient number, since it is larger than the sum of its proper divisors (24812796611651).

56356253545405 is a wasteful number, since it uses less digits than its factorization.

56356253545405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12876538.

The product of its (nonzero) digits is 162000000, while the sum is 58.

The spelling of 56356253545405 in words is "fifty-six trillion, three hundred fifty-six billion, two hundred fifty-three million, five hundred forty-five thousand, four hundred five".