11987425 has 6 divisors (see below), whose sum is σ = 14864438. Its totient is φ = 9589920.

The previous prime is 11987419. The next prime is 11987453. The reversal of 11987425 is 52478911.

11987425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1018081 + 10969344 = 1009^2 + 3312^2 .

It is not a de Polignac number, because 11987425 - 2⁹ = 11986913 is a prime.

It is a Duffinian 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, 239724 + ... + 239773.

Almost surely, 2^11987425 is an apocalyptic number.

It is an amenable number.

11987425 is a deficient number, since it is larger than the sum of its proper divisors (2877013).

11987425 is an equidigital number, since it uses as much as digits as its factorization.

11987425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479507 (or 479502 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 11987425 is about 3462.2860944757. The cubic root of 11987425 is about 228.8628495512.

The spelling of 11987425 in words is "eleven million, nine hundred eighty-seven thousand, four hundred twenty-five".