22542421550 has 24 divisors (see below), whose sum is σ = 45740623752. Its totient is φ = 8197244000.

The previous prime is 22542421543. The next prime is 22542421553. The reversal of 22542421550 is 5512424522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542421553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20492561 + ... + 20493660.

It is an arithmetic number, because the mean of its divisors is an integer number (1905859323).

Almost surely, 2^22542421550 is an apocalyptic number.

22542421550 is an abundant number, since it is smaller than the sum of its proper divisors (23198202202).

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

22542421550 is a wasteful number, since it uses less digits than its factorization.

22542421550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40986244 (or 40986239 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 22542421550 in words is "twenty-two billion, five hundred forty-two million, four hundred twenty-one thousand, five hundred fifty".