22625457 has 8 divisors (see below), whose sum is σ = 30444480. Its totient is φ = 14945040.

The previous prime is 22625417. The next prime is 22625461. The reversal of 22625457 is 75452622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-22625457 is a prime.

It is a super-2 number, since 2×22625457² = 1023822608917698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22625417) 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 7 ways as a sum of consecutive naturals, for example, 34269 + ... + 34922.

It is an arithmetic number, because the mean of its divisors is an integer number (3805560).

Almost surely, 2^22625457 is an apocalyptic number.

It is an amenable number.

22625457 is a deficient number, since it is larger than the sum of its proper divisors (7819023).

22625457 is a wasteful number, since it uses less digits than its factorization.

22625457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69303.

The product of its digits is 33600, while the sum is 33.

The square root of 22625457 is about 4756.6224361410. The cubic root of 22625457 is about 282.8345455806.

The spelling of 22625457 in words is "twenty-two million, six hundred twenty-five thousand, four hundred fifty-seven".