252667539 has 16 divisors (see below), whose sum is σ = 374567200. Its totient is φ = 168334848.

The previous prime is 252667523. The next prime is 252667579. The reversal of 252667539 is 935766252.

252667539 is a `hidden beast` number, since 2 + 52 + 6 + 67 + 539 = 666.

It is not a de Polignac number, because 252667539 - 2⁴ = 252667523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252667494 and 252667503.

It is not an unprimeable number, because it can be changed into a prime (252667579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78147 + ... + 81315.

It is an arithmetic number, because the mean of its divisors is an integer number (23410450).

Almost surely, 2^252667539 is an apocalyptic number.

252667539 is a deficient number, since it is larger than the sum of its proper divisors (121899661).

252667539 is a wasteful number, since it uses less digits than its factorization.

252667539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6125 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 252667539 is about 15895.5194630437. The cubic root of 252667539 is about 632.1931950558.

The spelling of 252667539 in words is "two hundred fifty-two million, six hundred sixty-seven thousand, five hundred thirty-nine".