252611553 has 16 divisors (see below), whose sum is σ = 357227136. Its totient is φ = 158442240.

The previous prime is 252611549. The next prime is 252611561. The reversal of 252611553 is 355116252.

It is a happy number.

It is not a de Polignac number, because 252611553 - 2² = 252611549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252611553.

It is not an unprimeable number, because it can be changed into a prime (252611563) 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, 25800 + ... + 34217.

It is an arithmetic number, because the mean of its divisors is an integer number (22326696).

Almost surely, 2^252611553 is an apocalyptic number.

252611553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

252611553 is a deficient number, since it is larger than the sum of its proper divisors (104615583).

252611553 is a wasteful number, since it uses less digits than its factorization.

252611553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60104.

The product of its digits is 9000, while the sum is 30.

The square root of 252611553 is about 15893.7583031830. The cubic root of 252611553 is about 632.1464978783.

The spelling of 252611553 in words is "two hundred fifty-two million, six hundred eleven thousand, five hundred fifty-three".