50939904 has 48 divisors (see below), whose sum is σ = 135822960. Its totient is φ = 16977920.

The previous prime is 50939897. The next prime is 50939923. The reversal of 50939904 is 40993905.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1999 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (2829645).

Almost surely, 2^50939904 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 50939904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67911480).

50939904 is an abundant number, since it is smaller than the sum of its proper divisors (84883056).

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

50939904 is an equidigital number, since it uses as much as digits as its factorization.

50939904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8316 (or 8296 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 50939904 is about 7137.2196267174. The cubic root of 50939904 is about 370.6972583715.

The spelling of 50939904 in words is "fifty million, nine hundred thirty-nine thousand, nine hundred four".