52399872 has 270 divisors, whose sum is σ = 188460888. Its totient is φ = 14183424.

The previous prime is 52399801. The next prime is 52399901. The reversal of 52399872 is 27899325.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2757879 + ... + 2757897.

Almost surely, 2^52399872 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 52399872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94230444).

52399872 is an abundant number, since it is smaller than the sum of its proper divisors (136061016).

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

52399872 is an equidigital number, since it uses as much as digits as its factorization.

52399872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 31 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 52399872 is about 7238.7755870727. The cubic root of 52399872 is about 374.2054215761.

The spelling of 52399872 in words is "fifty-two million, three hundred ninety-nine thousand, eight hundred seventy-two".