252135750 has 32 divisors (see below), whose sum is σ = 629332704. Its totient is φ = 67236000.

The previous prime is 252135749. The next prime is 252135791. The reversal of 252135750 is 57531252.

252135750 is digitally balanced in base 3, 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 (30).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 167341 + ... + 168840.

It is an arithmetic number, because the mean of its divisors is an integer number (19666647).

Almost surely, 2^252135750 is an apocalyptic number.

252135750 is an abundant number, since it is smaller than the sum of its proper divisors (377196954).

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

252135750 is a wasteful number, since it uses less digits than its factorization.

252135750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336201 (or 336191 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 252135750 is about 15878.7830138207. The cubic root of 252135750 is about 631.7493581645.

The spelling of 252135750 in words is "two hundred fifty-two million, one hundred thirty-five thousand, seven hundred fifty".