22553850 has 48 divisors (see below), whose sum is σ = 61022880. Its totient is φ = 5467200.

The previous prime is 22553827. The next prime is 22553873. The reversal of 22553850 is 5835522.

It is an interprime number because it is at equal distance from previous prime (22553827) and next prime (22553873).

It is a super-2 number, since 2×22553850² = 1017352299645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5185 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (1271310).

Almost surely, 2^22553850 is an apocalyptic number.

22553850 is an abundant number, since it is smaller than the sum of its proper divisors (38469030).

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

22553850 is a wasteful number, since it uses less digits than its factorization.

22553850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13695 (or 13690 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 22553850 is about 4749.0893863982. The cubic root of 22553850 is about 282.5358505159.

It can be divided in two parts, 2255 and 3850, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 22553850 in words is "twenty-two million, five hundred fifty-three thousand, eight hundred fifty".