11525919 has 4 divisors (see below), whose sum is σ = 15367896. Its totient is φ = 7683944.

The previous prime is 11525911. The next prime is 11525923. The reversal of 11525919 is 91952511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11525919 - 2³ = 11525911 is a prime.

It is a super-2 number, since 2×11525919² = 265693617589122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11525919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11525911) 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, 1920984 + ... + 1920989.

It is an arithmetic number, because the mean of its divisors is an integer number (3841974).

Almost surely, 2^11525919 is an apocalyptic number.

11525919 is a deficient number, since it is larger than the sum of its proper divisors (3841977).

11525919 is an equidigital number, since it uses as much as digits as its factorization.

11525919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841976.

The product of its digits is 4050, while the sum is 33.

The square root of 11525919 is about 3394.9843887712. The cubic root of 11525919 is about 225.8873208104.

The spelling of 11525919 in words is "eleven million, five hundred twenty-five thousand, nine hundred nineteen".