50251040640 has 96 divisors (see below), whose sum is σ = 173523144600. Its totient is φ = 13400275968.

The previous prime is 50251040603. The next prime is 50251040681. The reversal of 50251040640 is 4604015205.

50251040640 is a `hidden beast` number, since 5 + 0 + 2 + 5 + 10 + 4 + 0 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4356310 + ... + 4367829.

Almost surely, 2^50251040640 is an apocalyptic number.

It is an amenable number.

50251040640 is an abundant number, since it is smaller than the sum of its proper divisors (123272103960).

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

50251040640 is a wasteful number, since it uses less digits than its factorization.

50251040640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8724164 (or 8724149 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 50251040640 its reverse (4604015205), we get a palindrome (54855055845).

The spelling of 50251040640 in words is "fifty billion, two hundred fifty-one million, forty thousand, six hundred forty".