56517843294 has 36 divisors (see below), whose sum is σ = 134599662288. Its totient is φ = 17126618520.

The previous prime is 56517843269. The next prime is 56517843299. The reversal of 56517843294 is 49234871565.

It is a happy number.

56517843294 is a `hidden beast` number, since 5 + 6 + 51 + 78 + 432 + 94 = 666.

It is a super-2 number, since 2×56517843294² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56517843294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56517843299) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12972534 + ... + 12976889.

It is an arithmetic number, because the mean of its divisors is an integer number (3738879508).

Almost surely, 2^56517843294 is an apocalyptic number.

56517843294 is an abundant number, since it is smaller than the sum of its proper divisors (78081818994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56517843294 is a wasteful number, since it uses less digits than its factorization.

56517843294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25949453 (or 25949439 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

It can be divided in two parts, 56517 and 843294, that added together give a triangular number (899811 = T₁₃₄₁).

The spelling of 56517843294 in words is "fifty-six billion, five hundred seventeen million, eight hundred forty-three thousand, two hundred ninety-four".