22425625640 has 64 divisors (see below), whose sum is σ = 55060378560. Its totient is φ = 8152453120.

The previous prime is 22425625603. The next prime is 22425625681. The reversal of 22425625640 is 4652652422.

It is a junction number, because it is equal to n+sod(n) for n = 22425625594 and 22425625603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2630024 + ... + 2638536.

It is an arithmetic number, because the mean of its divisors is an integer number (860318415).

Almost surely, 2^22425625640 is an apocalyptic number.

22425625640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22425625640 is an abundant number, since it is smaller than the sum of its proper divisors (32634752920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22425625640 is a wasteful number, since it uses less digits than its factorization.

22425625640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14522 (or 14518 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 22425625640 in words is "twenty-two billion, four hundred twenty-five million, six hundred twenty-five thousand, six hundred forty".