11818725 has 24 divisors (see below), whose sum is σ = 20073120. Its totient is φ = 6131520.

The previous prime is 11818693. The next prime is 11818727. The reversal of 11818725 is 52781811.

It is not a de Polignac number, because 11818725 - 2⁵ = 11818693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11818727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 646 + ... + 4904.

It is an arithmetic number, because the mean of its divisors is an integer number (836380).

Almost surely, 2^11818725 is an apocalyptic number.

11818725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11818725 is a deficient number, since it is larger than the sum of its proper divisors (8254395).

11818725 is a wasteful number, since it uses less digits than its factorization.

11818725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309 (or 4304 counting only the distinct ones).

The product of its digits is 4480, while the sum is 33.

The square root of 11818725 is about 3437.8372561830. The cubic root of 11818725 is about 227.7841717200.

The spelling of 11818725 in words is "eleven million, eight hundred eighteen thousand, seven hundred twenty-five".