52091500 has 24 divisors (see below), whose sum is σ = 113768928. Its totient is φ = 20836400.

The previous prime is 52091497. The next prime is 52091509. The reversal of 52091500 is 519025.

It is not an unprimeable number, because it can be changed into a prime (52091509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51592 + ... + 52591.

It is an arithmetic number, because the mean of its divisors is an integer number (4740372).

Almost surely, 2^52091500 is an apocalyptic number.

52091500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52091500 is an abundant number, since it is smaller than the sum of its proper divisors (61677428).

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

52091500 is a wasteful number, since it uses less digits than its factorization.

52091500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104202 (or 104190 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 52091500 is about 7217.4441459564. Note that the first 3 decimals coincide. The cubic root of 52091500 is about 373.4699135337.

The spelling of 52091500 in words is "fifty-two million, ninety-one thousand, five hundred".