25231222213252 has 96 divisors (see below), whose sum is σ = 51491177781120. Its totient is φ = 10690977024000.

The previous prime is 25231222213243. The next prime is 25231222213259.

25231222213252 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25231222213252² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (25231222213259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43484002 + ... + 44060422.

It is an arithmetic number, because the mean of its divisors is an integer number (536366435220).

Almost surely, 2^{25231222213252} is an apocalyptic number.

25231222213252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25231222213252 is an abundant number, since it is smaller than the sum of its proper divisors (26259955567868).

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

25231222213252 is a wasteful number, since it uses less digits than its factorization.

25231222213252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577013 (or 577011 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

It can be divided in two parts, 2523122 and 2213252, that added together give a palindrome (4736374).

The spelling of 25231222213252 in words is "twenty-five trillion, two hundred thirty-one billion, two hundred twenty-two million, two hundred thirteen thousand, two hundred fifty-two".