11572497528 has 16 divisors (see below), whose sum is σ = 28931243880. Its totient is φ = 3857499168.

The previous prime is 11572497527. The next prime is 11572497529. The reversal of 11572497528 is 82579427511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11572497527) and next prime (11572497529).

It is a super-2 number, since 2×11572497528² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572497527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241093675 + ... + 241093722.

Almost surely, 2^11572497528 is an apocalyptic number.

It is an amenable number.

11572497528 is an abundant number, since it is smaller than the sum of its proper divisors (17358746352).

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

11572497528 is a wasteful number, since it uses less digits than its factorization.

11572497528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482187406 (or 482187402 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 51.

The spelling of 11572497528 in words is "eleven billion, five hundred seventy-two million, four hundred ninety-seven thousand, five hundred twenty-eight".