11513725 has 12 divisors (see below), whose sum is σ = 14770260. Its totient is φ = 8892800.

The previous prime is 11513687. The next prime is 11513729. The reversal of 11513725 is 52731511.

It can be written as a sum of positive squares in 6 ways, for example, as 210681 + 11303044 = 459^2 + 3362^2 .

It is not a de Polignac number, because 11513725 - 2²¹ = 9416573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 11513725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11513729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7216 + ... + 8665.

It is an arithmetic number, because the mean of its divisors is an integer number (1230855).

Almost surely, 2^11513725 is an apocalyptic number.

It is an amenable number.

11513725 is a deficient number, since it is larger than the sum of its proper divisors (3256535).

11513725 is a wasteful number, since it uses less digits than its factorization.

11513725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15920 (or 15915 counting only the distinct ones).

The product of its digits is 1050, while the sum is 25.

The square root of 11513725 is about 3393.1880289781. The cubic root of 11513725 is about 225.8076325317.

The spelling of 11513725 in words is "eleven million, five hundred thirteen thousand, seven hundred twenty-five".