22251054 has 32 divisors (see below), whose sum is σ = 51158016. Its totient is φ = 6320160.

The previous prime is 22251049. The next prime is 22251067. The reversal of 22251054 is 45015222.

It is a happy number.

It is a super-2 number, since 2×22251054² = 990218808221832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22251054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6139 + ... + 9065.

It is an arithmetic number, because the mean of its divisors is an integer number (1598688).

Almost surely, 2^22251054 is an apocalyptic number.

22251054 is an abundant number, since it is smaller than the sum of its proper divisors (28906962).

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

22251054 is a wasteful number, since it uses less digits than its factorization.

22251054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22251054 is about 4717.1022884818. The cubic root of 22251054 is about 281.2657575369.

Adding to 22251054 its reverse (45015222), we get a palindrome (67266276).

The spelling of 22251054 in words is "twenty-two million, two hundred fifty-one thousand, fifty-four".