252640025022 has 192 divisors, whose sum is σ = 670062772224. Its totient is φ = 62676250560.

The previous prime is 252640025021. The next prime is 252640025039. The reversal of 252640025022 is 220520046252.

It is a super-2 number, since 2×252640025022² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252640025021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61214323 + ... + 61218449.

It is an arithmetic number, because the mean of its divisors is an integer number (3489910272).

Almost surely, 2^252640025022 is an apocalyptic number.

252640025022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 252640025022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335031386112).

252640025022 is an abundant number, since it is smaller than the sum of its proper divisors (417422747202).

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

252640025022 is a wasteful number, since it uses less digits than its factorization.

252640025022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003 (or 4996 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 252640025022 in words is "two hundred fifty-two billion, six hundred forty million, twenty-five thousand, twenty-two".