22485551 has 6 divisors (see below), whose sum is σ = 24715656. Its totient is φ = 20441300.

The previous prime is 22485539. The next prime is 22485557. The reversal of 22485551 is 15558422.

It is a de Polignac number, because none of the positive numbers 2^k-22485551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22485557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92795 + ... + 93036.

It is an arithmetic number, because the mean of its divisors is an integer number (4119276).

Almost surely, 2^22485551 is an apocalyptic number.

22485551 is a deficient number, since it is larger than the sum of its proper divisors (2230105).

22485551 is a wasteful number, since it uses less digits than its factorization.

22485551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185853 (or 185842 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 22485551 is about 4741.8931873251. The cubic root of 22485551 is about 282.2503644812.

The spelling of 22485551 in words is "twenty-two million, four hundred eighty-five thousand, five hundred fifty-one".