22525454 has 16 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 9630744.

The previous prime is 22525439. The next prime is 22525457. The reversal of 22525454 is 45452522.

It is a super-2 number, since 2×22525454² = 1014792155812232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5027 + ... + 8385.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^22525454 is an apocalyptic number.

22525454 is a deficient number, since it is larger than the sum of its proper divisors (16181746).

22525454 is a wasteful number, since it uses less digits than its factorization.

22525454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847.

The product of its digits is 16000, while the sum is 29.

The square root of 22525454 is about 4746.0988190302. The cubic root of 22525454 is about 282.4172269048.

Adding to 22525454 its reverse (45452522), we get a palindrome (67977976).

The spelling of 22525454 in words is "twenty-two million, five hundred twenty-five thousand, four hundred fifty-four".