22553550 has 36 divisors (see below), whose sum is σ = 60595080. Its totient is φ = 6014160.

The previous prime is 22553539. The next prime is 22553563. The reversal of 22553550 is 5535522.

It is a super-3 number, since 3×22553550³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24610 + ... + 25509.

Almost surely, 2^22553550 is an apocalyptic number.

22553550 is an abundant number, since it is smaller than the sum of its proper divisors (38041530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22553550 is a wasteful number, since it uses less digits than its factorization.

22553550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50137 (or 50129 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 22553550 is about 4749.0578012907. The cubic root of 22553550 is about 282.5345977936.

It can be divided in two parts, 2 and 2553550, that added together give a palindrome (2553552).

The spelling of 22553550 in words is "twenty-two million, five hundred fifty-three thousand, five hundred fifty".