22557007 has 8 divisors (see below), whose sum is σ = 25011792. Its totient is φ = 20169600.

The previous prime is 22557001. The next prime is 22557019. The reversal of 22557007 is 70075522.

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

It is not a de Polignac number, because 22557007 - 2³ = 22556999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22557001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16138 + ... + 17479.

It is an arithmetic number, because the mean of its divisors is an integer number (3126474).

Almost surely, 2^22557007 is an apocalyptic number.

22557007 is a deficient number, since it is larger than the sum of its proper divisors (2454785).

22557007 is a wasteful number, since it uses less digits than its factorization.

22557007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33689.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 22557007 is about 4749.4217542770. The cubic root of 22557007 is about 282.5490326565.

The spelling of 22557007 in words is "twenty-two million, five hundred fifty-seven thousand, seven".