253129564 has 12 divisors (see below), whose sum is σ = 446164600. Its totient is φ = 125653968.

The previous prime is 253129561. The next prime is 253129567. The reversal of 253129564 is 465921352.

It is an interprime number because it is at equal distance from previous prime (253129561) and next prime (253129567).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253129561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227079 + ... + 228190.

Almost surely, 2^253129564 is an apocalyptic number.

It is an amenable number.

253129564 is a deficient number, since it is larger than the sum of its proper divisors (193035036).

253129564 is a wasteful number, since it uses less digits than its factorization.

253129564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455412 (or 455410 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 253129564 is about 15910.0460087330. The cubic root of 253129564 is about 632.5783008564.

The spelling of 253129564 in words is "two hundred fifty-three million, one hundred twenty-nine thousand, five hundred sixty-four".