22555400 has 48 divisors (see below), whose sum is σ = 59936640. Its totient is φ = 7732800.

The previous prime is 22555399. The next prime is 22555409. The reversal of 22555400 is 455522.

It is not an unprimeable number, because it can be changed into a prime (22555409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6656 + ... + 9455.

It is an arithmetic number, because the mean of its divisors is an integer number (1248680).

Almost surely, 2^22555400 is an apocalyptic number.

22555400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22555400 is an abundant number, since it is smaller than the sum of its proper divisors (37381240).

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

22555400 is a wasteful number, since it uses less digits than its factorization.

22555400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16134 (or 16125 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 22555400 is about 4749.2525727740. The cubic root of 22555400 is about 282.5423227373.

The spelling of 22555400 in words is "twenty-two million, five hundred fifty-five thousand, four hundred".