252750051 has 20 divisors (see below), whose sum is σ = 390588000. Its totient is φ = 162688176.

The previous prime is 252750049. The next prime is 252750053. The reversal of 252750051 is 150057252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252750049) and next prime (252750053).

It is not a de Polignac number, because 252750051 - 2¹ = 252750049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 252749997 and 252750024.

It is not an unprimeable number, because it can be changed into a prime (252750053) by changing a digit.

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, 51451 + ... + 56148.

It is an arithmetic number, because the mean of its divisors is an integer number (19529400).

Almost surely, 2^252750051 is an apocalyptic number.

252750051 is a deficient number, since it is larger than the sum of its proper divisors (137837949).

252750051 is a wasteful number, since it uses less digits than its factorization.

252750051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107640 (or 107631 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 252750051 is about 15898.1146995485. The cubic root of 252750051 is about 632.2620046437.

The spelling of 252750051 in words is "two hundred fifty-two million, seven hundred fifty thousand, fifty-one".