22501452540 has 96 divisors (see below), whose sum is σ = 72488102400. Its totient is φ = 5108656896.

The previous prime is 22501452497. The next prime is 22501452583. The reversal of 22501452540 is 4525410522.

It is an interprime number because it is at equal distance from previous prime (22501452497) and next prime (22501452583).

It is a super-3 number, since 3×22501452540³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22501452498 and 22501452507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117202 + ... + 242361.

It is an arithmetic number, because the mean of its divisors is an integer number (755084400).

Almost surely, 2^22501452540 is an apocalyptic number.

22501452540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22501452540 is an abundant number, since it is smaller than the sum of its proper divisors (49986649860).

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

22501452540 is a wasteful number, since it uses less digits than its factorization.

22501452540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359731 (or 359729 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 22501452540 in words is "twenty-two billion, five hundred one million, four hundred fifty-two thousand, five hundred forty".