52907904 has 176 divisors, whose sum is σ = 180688920. Its totient is φ = 15116544.

The previous prime is 52907903. The next prime is 52907909. The reversal of 52907904 is 40970925.

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 (52907903) by changing a digit.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 7558269 + ... + 7558275.

Almost surely, 2^52907904 is an apocalyptic number.

52907904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52907904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90344460).

52907904 is an abundant number, since it is smaller than the sum of its proper divisors (127781016).

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

52907904 is an frugal number, since it uses more digits than its factorization.

52907904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 52907904 is about 7273.7819598885. The cubic root of 52907904 is about 375.4108776477.

The spelling of 52907904 in words is "fifty-two million, nine hundred seven thousand, nine hundred four".