11256172052 has 36 divisors (see below), whose sum is σ = 20953658880. Its totient is φ = 5289801552.

The previous prime is 11256171973. The next prime is 11256172061. The reversal of 11256172052 is 25027165211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152699 + ... + 214077.

It is an arithmetic number, because the mean of its divisors is an integer number (582046080).

Almost surely, 2^11256172052 is an apocalyptic number.

It is an amenable number.

11256172052 is a deficient number, since it is larger than the sum of its proper divisors (9697486828).

11256172052 is a wasteful number, since it uses less digits than its factorization.

11256172052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61548 (or 61527 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 11256172052 in words is "eleven billion, two hundred fifty-six million, one hundred seventy-two thousand, fifty-two".