11525520 has 40 divisors (see below), whose sum is σ = 35729856. Its totient is φ = 3073408.

The previous prime is 11525509. The next prime is 11525543. The reversal of 11525520 is 2552511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11525520² = 265675222540800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23772 + ... + 24251.

Almost surely, 2^11525520 is an apocalyptic number.

11525520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11525520 is an abundant number, since it is smaller than the sum of its proper divisors (24204336).

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

11525520 is a wasteful number, since it uses less digits than its factorization.

11525520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48039 (or 48033 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 11525520 is about 3394.9256251058. The cubic root of 11525520 is about 225.8847142191.

The spelling of 11525520 in words is "eleven million, five hundred twenty-five thousand, five hundred twenty".