22550857 has 16 divisors (see below), whose sum is σ = 28173312. Its totient is φ = 17602560.

The previous prime is 22550849. The next prime is 22550863. The reversal of 22550857 is 75805522.

It is a cyclic number.

It is not a de Polignac number, because 22550857 - 2³ = 22550849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22550837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633 + ... + 6745.

It is an arithmetic number, because the mean of its divisors is an integer number (1760832).

Almost surely, 2^22550857 is an apocalyptic number.

It is an amenable number.

22550857 is a deficient number, since it is larger than the sum of its proper divisors (5622455).

22550857 is a wasteful number, since it uses less digits than its factorization.

22550857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6168.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 22550857 is about 4748.7742629020. The cubic root of 22550857 is about 282.5233520258.

The spelling of 22550857 in words is "twenty-two million, five hundred fifty thousand, eight hundred fifty-seven".