52525550 has 72 divisors (see below), whose sum is σ = 124043400. Its totient is φ = 16363200.

The previous prime is 52525541. The next prime is 52525553. The reversal of 52525550 is 5552525.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52525553) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25976 + ... + 27924.

It is an arithmetic number, because the mean of its divisors is an integer number (1722825).

Almost surely, 2^52525550 is an apocalyptic number.

52525550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52525550 is an abundant number, since it is smaller than the sum of its proper divisors (71517850).

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

52525550 is a wasteful number, since it uses less digits than its factorization.

52525550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 52525550 is about 7247.4512761384. The cubic root of 52525550 is about 374.5043525857.

The spelling of 52525550 in words is "fifty-two million, five hundred twenty-five thousand, five hundred fifty".