56649398083950 has 96 divisors (see below), whose sum is σ = 170005319748864. Its totient is φ = 12186761264640.

The previous prime is 56649398083939. The next prime is 56649398083951. The reversal of 56649398083950 is 5938089394665.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56649398083951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1586800024 + ... + 1586835723.

It is an arithmetic number, because the mean of its divisors is an integer number (1770888747384).

Almost surely, 2^{56649398083950} is an apocalyptic number.

56649398083950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56649398083950 is an abundant number, since it is smaller than the sum of its proper divisors (113355921664914).

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

56649398083950 is a wasteful number, since it uses less digits than its factorization.

56649398083950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173635786 (or 3173635781 counting only the distinct ones).

The product of its (nonzero) digits is 1511654400, while the sum is 75.

The spelling of 56649398083950 in words is "fifty-six trillion, six hundred forty-nine billion, three hundred ninety-eight million, eighty-three thousand, nine hundred fifty".