22550138 has 24 divisors (see below), whose sum is σ = 37268028. Its totient is φ = 10171008.

The previous prime is 22550119. The next prime is 22550147. The reversal of 22550138 is 83105522.

It can be written as a sum of positive squares in 6 ways, for example, as 12201049 + 10349089 = 3493^2 + 3217^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206828 + ... + 206936.

Almost surely, 2^22550138 is an apocalyptic number.

22550138 is a deficient number, since it is larger than the sum of its proper divisors (14717890).

22550138 is a wasteful number, since it uses less digits than its factorization.

22550138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 22550138 is about 4748.6985585526. The cubic root of 22550138 is about 282.5203493838.

The spelling of 22550138 in words is "twenty-two million, five hundred fifty thousand, one hundred thirty-eight".