11157225252 has 96 divisors (see below), whose sum is σ = 27832218624. Its totient is φ = 3472934400.

The previous prime is 11157225241. The next prime is 11157225263. The reversal of 11157225252 is 25252275111.

It is an interprime number because it is at equal distance from previous prime (11157225241) and next prime (11157225263).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1198038 + ... + 1207314.

It is an arithmetic number, because the mean of its divisors is an integer number (289918944).

Almost surely, 2^11157225252 is an apocalyptic number.

11157225252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11157225252 is an abundant number, since it is smaller than the sum of its proper divisors (16674993372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11157225252 is a wasteful number, since it uses less digits than its factorization.

11157225252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429 (or 9427 counting only the distinct ones).

The product of its digits is 14000, while the sum is 33.

The spelling of 11157225252 in words is "eleven billion, one hundred fifty-seven million, two hundred twenty-five thousand, two hundred fifty-two".