11975575 has 6 divisors (see below), whose sum is σ = 14849744. Its totient is φ = 9580440.

The previous prime is 11975563. The next prime is 11975591. The reversal of 11975575 is 57557911.

It is not a de Polignac number, because 11975575 - 2¹⁵ = 11942807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239487 + ... + 239536.

Almost surely, 2^11975575 is an apocalyptic number.

11975575 is a deficient number, since it is larger than the sum of its proper divisors (2874169).

11975575 is an equidigital number, since it uses as much as digits as its factorization.

11975575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479033 (or 479028 counting only the distinct ones).

The product of its digits is 55125, while the sum is 40.

The square root of 11975575 is about 3460.5743742911. The cubic root of 11975575 is about 228.7874116401.

The spelling of 11975575 in words is "eleven million, nine hundred seventy-five thousand, five hundred seventy-five".