11057500215 has 32 divisors (see below), whose sum is σ = 19686723840. Its totient is φ = 5888649888.

The previous prime is 11057500211. The next prime is 11057500229. The reversal of 11057500215 is 51200575011.

It is not a de Polignac number, because 11057500215 - 2² = 11057500211 is a prime.

It is a super-2 number, since 2×11057500215² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11057500211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32244 + ... + 152166.

It is an arithmetic number, because the mean of its divisors is an integer number (615210120).

Almost surely, 2^11057500215 is an apocalyptic number.

11057500215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11057500215 is a deficient number, since it is larger than the sum of its proper divisors (8629223625).

11057500215 is a wasteful number, since it uses less digits than its factorization.

11057500215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120620 (or 120614 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The spelling of 11057500215 in words is "eleven billion, fifty-seven million, five hundred thousand, two hundred fifteen".