50975047656 has 640 divisors, whose sum is σ = 168608563200. Its totient is φ = 14265538560.

The previous prime is 50975047649. The next prime is 50975047661. The reversal of 50975047656 is 65674057905.

50975047656 is a `hidden beast` number, since 50 + 9 + 75 + 0 + 476 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 401378265 + ... + 401378391.

It is an arithmetic number, because the mean of its divisors is an integer number (263450880).

Almost surely, 2^50975047656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50975047656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84304281600).

50975047656 is an abundant number, since it is smaller than the sum of its proper divisors (117633515544).

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

50975047656 is a wasteful number, since it uses less digits than its factorization.

50975047656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 54.

The spelling of 50975047656 in words is "fifty billion, nine hundred seventy-five million, forty-seven thousand, six hundred fifty-six".