11525475031 has 32 divisors (see below), whose sum is σ = 14340096000. Its totient is φ = 9043568352.

The previous prime is 11525475011. The next prime is 11525475067. The reversal of 11525475031 is 13057452511.

It is a de Polignac number, because none of the positive numbers 2^k-11525475031 is a prime.

It is a super-2 number, since 2×11525475031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11525475011) 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, 482160 + ... + 505498.

It is an arithmetic number, because the mean of its divisors is an integer number (448128000).

Almost surely, 2^11525475031 is an apocalyptic number.

11525475031 is a deficient number, since it is larger than the sum of its proper divisors (2814620969).

11525475031 is a wasteful number, since it uses less digits than its factorization.

11525475031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23491.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 11525475031 in words is "eleven billion, five hundred twenty-five million, four hundred seventy-five thousand, thirty-one".