22553800 has 48 divisors (see below), whose sum is σ = 54728640. Its totient is φ = 8627520.

The previous prime is 22553759. The next prime is 22553819. The reversal of 22553800 is 835522.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 2149 + ... + 7051.

It is an arithmetic number, because the mean of its divisors is an integer number (1140180).

Almost surely, 2^22553800 is an apocalyptic number.

22553800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22553800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27364320).

22553800 is an abundant number, since it is smaller than the sum of its proper divisors (32174840).

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

22553800 is a wasteful number, since it uses less digits than its factorization.

22553800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942 (or 4933 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 22553800 is about 4749.0841222282. The cubic root of 22553800 is about 282.5356417296.

It can be divided in two parts, 2 and 2553800, that multiplied together give a square (5107600 = 2260²).

The spelling of 22553800 in words is "twenty-two million, five hundred fifty-three thousand, eight hundred".