22477725 has 18 divisors (see below), whose sum is σ = 40260506. Its totient is φ = 11988000.

The previous prime is 22477687. The next prime is 22477729. The reversal of 22477725 is 52777422.

It can be written as a sum of positive squares in 3 ways, for example, as 6365529 + 16112196 = 2523^2 + 4014^2 .

It is not a de Polignac number, because 22477725 - 2⁶ = 22477661 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22477725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22477729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49726 + ... + 50175.

Almost surely, 2^22477725 is an apocalyptic number.

22477725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22477725 is a deficient number, since it is larger than the sum of its proper divisors (17782781).

22477725 is a wasteful number, since it uses less digits than its factorization.

22477725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99917 (or 99909 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 22477725 is about 4741.0679176742. The cubic root of 22477725 is about 282.2176153369.

The spelling of 22477725 in words is "twenty-two million, four hundred seventy-seven thousand, seven hundred twenty-five".