11972725 has 12 divisors (see below), whose sum is σ = 15015780. Its totient is φ = 9468800.

The previous prime is 11972713. The next prime is 11972729. The reversal of 11972725 is 52727911.

It can be written as a sum of positive squares in 6 ways, for example, as 1790244 + 10182481 = 1338^2 + 3191^2 .

It is not a de Polignac number, because 11972725 - 2¹⁷ = 11841653 is a prime.

It is a super-2 number, since 2×11972725² = 286692287851250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11972729) 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 11 ways as a sum of consecutive naturals, for example, 466 + ... + 4915.

It is an arithmetic number, because the mean of its divisors is an integer number (1251315).

Almost surely, 2^11972725 is an apocalyptic number.

It is an amenable number.

11972725 is a deficient number, since it is larger than the sum of its proper divisors (3043055).

11972725 is an equidigital number, since it uses as much as digits as its factorization.

11972725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480 (or 5475 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The square root of 11972725 is about 3460.1625684352. The cubic root of 11972725 is about 228.7692609221.

The spelling of 11972725 in words is "eleven million, nine hundred seventy-two thousand, seven hundred twenty-five".