22258554 has 8 divisors (see below), whose sum is σ = 44517120. Its totient is φ = 7419516.

The previous prime is 22258553. The next prime is 22258583. The reversal of 22258554 is 45585222.

Added to its reverse (45585222) it gives a triangular number (67843776 = T₁₁₆₄₈).

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22258554 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22258553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854874 + ... + 1854885.

It is an arithmetic number, because the mean of its divisors is an integer number (5564640).

Almost surely, 2^22258554 is an apocalyptic number.

22258554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22258554 is a wasteful number, since it uses less digits than its factorization.

22258554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709764.

The product of its digits is 32000, while the sum is 33.

The square root of 22258554 is about 4717.8972010844. The cubic root of 22258554 is about 281.2973553841.

Adding to 22258554 its reverse (45585222), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 22258554 in words is "twenty-two million, two hundred fifty-eight thousand, five hundred fifty-four".