22725415 has 8 divisors (see below), whose sum is σ = 28211040. Its totient is φ = 17553312.

The previous prime is 22725407. The next prime is 22725421. The reversal of 22725415 is 51452722.

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

It is a cyclic number.

It is not a de Polignac number, because 22725415 - 2³ = 22725407 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 78219 + ... + 78508.

It is an arithmetic number, because the mean of its divisors is an integer number (3526380).

Almost surely, 2^22725415 is an apocalyptic number.

22725415 is a deficient number, since it is larger than the sum of its proper divisors (5485625).

22725415 is a wasteful number, since it uses less digits than its factorization.

22725415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156761.

The product of its digits is 5600, while the sum is 28.

The square root of 22725415 is about 4767.1181021661. The cubic root of 22725415 is about 283.2504494202.

The spelling of 22725415 in words is "twenty-two million, seven hundred twenty-five thousand, four hundred fifteen".