22500451 has 8 divisors (see below), whose sum is σ = 23721984. Its totient is φ = 21309960.

The previous prime is 22500449. The next prime is 22500493. The reversal of 22500451 is 15400522.

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

It is a cyclic number.

It is not a de Polignac number, because 22500451 - 2¹ = 22500449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22500151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6265 + ... + 9178.

It is an arithmetic number, because the mean of its divisors is an integer number (2965248).

Almost surely, 2^22500451 is an apocalyptic number.

22500451 is a deficient number, since it is larger than the sum of its proper divisors (1221533).

22500451 is a wasteful number, since it uses less digits than its factorization.

22500451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15521.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22500451 is about 4743.4640295885. The cubic root of 22500451 is about 282.3126949061.

Adding to 22500451 its reverse (15400522), we get a palindrome (37900973).

The spelling of 22500451 in words is "twenty-two million, five hundred thousand, four hundred fifty-one".