22530887451 has 32 divisors (see below), whose sum is σ = 34484336640. Its totient is φ = 14524034400.

The previous prime is 22530887447. The next prime is 22530887479. The reversal of 22530887451 is 15478803522.

22530887451 is a `hidden beast` number, since 225 + 308 + 8 + 74 + 51 = 666.

It is not a de Polignac number, because 22530887451 - 2² = 22530887447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22530887397 and 22530887406.

It is not an unprimeable number, because it can be changed into a prime (22530887441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1063381 + ... + 1084361.

It is an arithmetic number, because the mean of its divisors is an integer number (1077635520).

Almost surely, 2^22530887451 is an apocalyptic number.

22530887451 is a deficient number, since it is larger than the sum of its proper divisors (11953449189).

22530887451 is a wasteful number, since it uses less digits than its factorization.

22530887451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22304 (or 22298 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 22530887451 in words is "twenty-two billion, five hundred thirty million, eight hundred eighty-seven thousand, four hundred fifty-one".