252111952635 has 32 divisors (see below), whose sum is σ = 428859214848. Its totient is φ = 126186952320.

The previous prime is 252111952619. The next prime is 252111952639. The reversal of 252111952635 is 536259111252.

It is not a de Polignac number, because 252111952635 - 2⁴ = 252111952619 is a prime.

It is a super-2 number, since 2×252111952635² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252111952639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6875671 + ... + 6912240.

It is an arithmetic number, because the mean of its divisors is an integer number (13401850464).

Almost surely, 2^252111952635 is an apocalyptic number.

252111952635 is a deficient number, since it is larger than the sum of its proper divisors (176747262213).

252111952635 is a wasteful number, since it uses less digits than its factorization.

252111952635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787995.

The product of its digits is 162000, while the sum is 42.

The spelling of 252111952635 in words is "two hundred fifty-two billion, one hundred eleven million, nine hundred fifty-two thousand, six hundred thirty-five".