22501542363252 has 12 divisors (see below), whose sum is σ = 52503598847616. Its totient is φ = 7500514121080.

The previous prime is 22501542363247. The next prime is 22501542363257. The reversal of 22501542363252 is 25236324510522.

It is an interprime number because it is at equal distance from previous prime (22501542363247) and next prime (22501542363257).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×22501542363252² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501542363257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937564265124 + ... + 937564265147.

It is an arithmetic number, because the mean of its divisors is an integer number (4375299903968).

Almost surely, 2^{22501542363252} is an apocalyptic number.

It is an amenable number.

22501542363252 is an abundant number, since it is smaller than the sum of its proper divisors (30002056484364).

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

22501542363252 is a wasteful number, since it uses less digits than its factorization.

22501542363252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875128530278 (or 1875128530276 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 22501542363252 its reverse (25236324510522), we get a palindrome (47737866873774).

The spelling of 22501542363252 in words is "twenty-two trillion, five hundred one billion, five hundred forty-two million, three hundred sixty-three thousand, two hundred fifty-two".