11557257375 has 32 divisors (see below), whose sum is σ = 19238768640. Its totient is φ = 6161469600.

The previous prime is 11557257367. The next prime is 11557257461. The reversal of 11557257375 is 57375275511.

It is a happy number.

It is not a de Polignac number, because 11557257375 - 2³ = 11557257367 is a prime.

It is a congruent number.

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, 1390482 + ... + 1398768.

It is an arithmetic number, because the mean of its divisors is an integer number (601211520).

Almost surely, 2^11557257375 is an apocalyptic number.

11557257375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11557257375 is a deficient number, since it is larger than the sum of its proper divisors (7681511265).

11557257375 is an equidigital number, since it uses as much as digits as its factorization.

11557257375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024 (or 12014 counting only the distinct ones).

The product of its digits is 1286250, while the sum is 48.

The spelling of 11557257375 in words is "eleven billion, five hundred fifty-seven million, two hundred fifty-seven thousand, three hundred seventy-five".