22630725 has 48 divisors (see below), whose sum is σ = 44788800. Its totient is φ = 11136960.

The previous prime is 22630721. The next prime is 22630739. The reversal of 22630725 is 52703622.

22630725 is a `hidden beast` number, since 2 + 2 + 630 + 7 + 25 = 666.

It is not a de Polignac number, because 22630725 - 2² = 22630721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22630721) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7486 + ... + 10064.

It is an arithmetic number, because the mean of its divisors is an integer number (933100).

Almost surely, 2^22630725 is an apocalyptic number.

22630725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22630725 is a deficient number, since it is larger than the sum of its proper divisors (22158075).

22630725 is a wasteful number, since it uses less digits than its factorization.

22630725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611 (or 2600 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 22630725 is about 4757.1761581846. The cubic root of 22630725 is about 282.8564951448.

The spelling of 22630725 in words is "twenty-two million, six hundred thirty thousand, seven hundred twenty-five".