11578725 has 18 divisors (see below), whose sum is σ = 20739186. Its totient is φ = 6175200.

The previous prime is 11578709. The next prime is 11578727. The reversal of 11578725 is 52787511.

11578725 is a `hidden beast` number, since 11 + 578 + 72 + 5 = 666.

11578725 is digitally balanced in base 2, 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 509796 + 11068929 = 714^2 + 3327^2 .

It is not a de Polignac number, because 11578725 - 2⁴ = 11578709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11578725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11578727) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25506 + ... + 25955.

It is an arithmetic number, because the mean of its divisors is an integer number (1152177).

Almost surely, 2^11578725 is an apocalyptic number.

11578725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11578725 is a deficient number, since it is larger than the sum of its proper divisors (9160461).

11578725 is a wasteful number, since it uses less digits than its factorization.

11578725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51477 (or 51469 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 11578725 is about 3402.7525622648. The cubic root of 11578725 is about 226.2317629247.

The spelling of 11578725 in words is "eleven million, five hundred seventy-eight thousand, seven hundred twenty-five".