11551560 has 32 divisors (see below), whose sum is σ = 34655040. Its totient is φ = 3080384.

The previous prime is 11551559. The next prime is 11551567. The reversal of 11551560 is 6515511.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11551560.

It is not an unprimeable number, because it can be changed into a prime (11551567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48012 + ... + 48251.

It is an arithmetic number, because the mean of its divisors is an integer number (1082970).

Almost surely, 2^11551560 is an apocalyptic number.

11551560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551560 is an abundant number, since it is smaller than the sum of its proper divisors (23103480).

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

11551560 is a wasteful number, since it uses less digits than its factorization.

11551560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96277 (or 96273 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 11551560 is about 3398.7585968998. The cubic root of 11551560 is about 226.0547026066.

The spelling of 11551560 in words is "eleven million, five hundred fifty-one thousand, five hundred sixty".