56540143236 has 48 divisors (see below), whose sum is σ = 135472434944. Its totient is φ = 18343323936.

The previous prime is 56540143229. The next prime is 56540143249. The reversal of 56540143236 is 63234104565.

It is a junction number, because it is equal to n+sod(n) for n = 56540143194 and 56540143203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47566 + ... + 339621.

Almost surely, 2^56540143236 is an apocalyptic number.

It is an amenable number.

56540143236 is an abundant number, since it is smaller than the sum of its proper divisors (78932291708).

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

56540143236 is a wasteful number, since it uses less digits than its factorization.

56540143236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387520 (or 387518 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 56540143236 in words is "fifty-six billion, five hundred forty million, one hundred forty-three thousand, two hundred thirty-six".