11720725 has 12 divisors (see below), whose sum is σ = 14873056. Its totient is φ = 9157680.

The previous prime is 11720707. The next prime is 11720767. The reversal of 11720725 is 52702711.

It is a happy number.

It is not a de Polignac number, because 11720725 - 2⁵ = 11720693 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11720725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4377 + ... + 6526.

Almost surely, 2^11720725 is an apocalyptic number.

It is an amenable number.

11720725 is a deficient number, since it is larger than the sum of its proper divisors (3152331).

11720725 is a wasteful number, since it uses less digits than its factorization.

11720725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10956 (or 10951 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 11720725 is about 3423.5544394678. The cubic root of 11720725 is about 227.1528336119.

The spelling of 11720725 in words is "eleven million, seven hundred twenty thousand, seven hundred twenty-five".