252998709 has 16 divisors (see below), whose sum is σ = 357540480. Its totient is φ = 158581760.

The previous prime is 252998677. The next prime is 252998747. The reversal of 252998709 is 907899252.

252998709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 252998709 - 2⁵ = 252998677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252998789) 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, 65389 + ... + 69149.

It is an arithmetic number, because the mean of its divisors is an integer number (22346280).

Almost surely, 2^252998709 is an apocalyptic number.

It is an amenable number.

252998709 is a deficient number, since it is larger than the sum of its proper divisors (104541771).

252998709 is a wasteful number, since it uses less digits than its factorization.

252998709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 252998709 is about 15905.9331382978. The cubic root of 252998709 is about 632.4692785570.

The spelling of 252998709 in words is "two hundred fifty-two million, nine hundred ninety-eight thousand, seven hundred nine".