50621253912 has 40 divisors (see below), whose sum is σ = 141786384300. Its totient is φ = 16873751088.

The previous prime is 50621253911. The next prime is 50621253919. The reversal of 50621253912 is 21935212605.

It is a happy number.

50621253912 is a `hidden beast` number, since 5 + 0 + 621 + 25 + 3 + 9 + 1 + 2 = 666.

It is a super-2 number, since 2×50621253912² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50621253911) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39058962 + ... + 39060257.

Almost surely, 2^50621253912 is an apocalyptic number.

It is an amenable number.

50621253912 is an abundant number, since it is smaller than the sum of its proper divisors (91165130388).

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

50621253912 is a wasteful number, since it uses less digits than its factorization.

50621253912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78119237 (or 78119224 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 50621253912 in words is "fifty billion, six hundred twenty-one million, two hundred fifty-three thousand, nine hundred twelve".