50521870 has 32 divisors (see below), whose sum is σ = 104767488. Its totient is φ = 17182368.

The previous prime is 50521787. The next prime is 50521873. The reversal of 50521870 is 7812505.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50521873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6049 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (3273984).

Almost surely, 2^50521870 is an apocalyptic number.

50521870 is an abundant number, since it is smaller than the sum of its proper divisors (54245618).

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

50521870 is a wasteful number, since it uses less digits than its factorization.

50521870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 50521870 is about 7107.8738030441. The cubic root of 50521870 is about 369.6804399341.

The spelling of 50521870 in words is "fifty million, five hundred twenty-one thousand, eight hundred seventy".