252709479 has 12 divisors (see below), whose sum is σ = 398209032. Its totient is φ = 153157200.

The previous prime is 252709463. The next prime is 252709507. The reversal of 252709479 is 974907252.

It is not a de Polignac number, because 252709479 - 2⁴ = 252709463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252709439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276212 + ... + 1276409.

It is an arithmetic number, because the mean of its divisors is an integer number (33184086).

Almost surely, 2^252709479 is an apocalyptic number.

252709479 is a deficient number, since it is larger than the sum of its proper divisors (145499553).

252709479 is a wasteful number, since it uses less digits than its factorization.

252709479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552638 (or 2552635 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 252709479 is about 15896.8386479828. The cubic root of 252709479 is about 632.2281721325.

The spelling of 252709479 in words is "two hundred fifty-two million, seven hundred nine thousand, four hundred seventy-nine".