22500481 has 8 divisors (see below), whose sum is σ = 23117600. Its totient is φ = 21899556.

The previous prime is 22500449. The next prime is 22500493. The reversal of 22500481 is 18400522.

It is not a de Polignac number, because 22500481 - 2⁵ = 22500449 is a prime.

It is a super-2 number, since 2×22500481² = 1012543290462722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22500581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79366 + ... + 79648.

It is an arithmetic number, because the mean of its divisors is an integer number (2889700).

Almost surely, 2^22500481 is an apocalyptic number.

It is an amenable number.

22500481 is a deficient number, since it is larger than the sum of its proper divisors (617119).

22500481 is an frugal number, since it uses more digits than its factorization.

22500481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 22500481 is about 4743.4671918334. The cubic root of 22500481 is about 282.3128203759.

The spelling of 22500481 in words is "twenty-two million, five hundred thousand, four hundred eighty-one".