50431878 has 36 divisors (see below), whose sum is σ = 127111140. Its totient is φ = 14408856.

The previous prime is 50431867. The next prime is 50431883. The reversal of 50431878 is 87813405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27708 + ... + 29471.

It is an arithmetic number, because the mean of its divisors is an integer number (3530865).

Almost surely, 2^50431878 is an apocalyptic number.

50431878 is an abundant number, since it is smaller than the sum of its proper divisors (76679262).

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

50431878 is a wasteful number, since it uses less digits than its factorization.

50431878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57201 (or 57191 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 50431878 is about 7101.5405370948. The cubic root of 50431878 is about 369.4608119146.

The spelling of 50431878 in words is "fifty million, four hundred thirty-one thousand, eight hundred seventy-eight".