56837557436 has 12 divisors (see below), whose sum is σ = 108508064280.
Its totient is φ = 25835253360.
The previous prime is 56837557411. The next prime is 56837557453. The reversal of 56837557436 is 63475573865.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645881291 + ... + 645881378.
It is an arithmetic number, because the mean of its divisors is an integer number (9042338690).
Almost surely, 256837557436 is an apocalyptic number.
It is an amenable number.
56837557436 is a deficient number, since it is larger than the sum of its proper divisors (51670506844).
56837557436 is a wasteful number, since it uses less digits than its factorization.
56837557436 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1291762684 (or 1291762682 counting only the distinct ones).
The product of its digits is 63504000, while the sum is 59.
The spelling of 56837557436 in words is "fifty-six billion, eight hundred thirty-seven million, five hundred fifty-seven thousand, four hundred thirty-six".