52517500 has 60 divisors (see below), whose sum is σ = 131295472. Its totient is φ = 18000000.

The previous prime is 52517497. The next prime is 52517513. The reversal of 52517500 is 571525.

It is a happy number.

52517500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16000 + ... + 19000.

Almost surely, 2^52517500 is an apocalyptic number.

52517500 is a gapful number since it is divisible by the number (50) 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 52517500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65647736).

52517500 is an abundant number, since it is smaller than the sum of its proper divisors (78777972).

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

52517500 is a wasteful number, since it uses less digits than its factorization.

52517500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032 (or 3015 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 52517500 is about 7246.8958872058. The cubic root of 52517500 is about 374.4852195856.

The spelling of 52517500 in words is "fifty-two million, five hundred seventeen thousand, five hundred".