25221123434452 has 24 divisors (see below), whose sum is σ = 48247481493792. Its totient is φ = 11440798437600.

The previous prime is 25221123434413. The next prime is 25221123434497. The reversal of 25221123434452 is 25443432112252.

It is a super-2 number, since 2×25221123434452² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583692603 + ... + 583735810.

It is an arithmetic number, because the mean of its divisors is an integer number (2010311728908).

Almost surely, 2^{25221123434452} is an apocalyptic number.

25221123434452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25221123434452 is a deficient number, since it is larger than the sum of its proper divisors (23026358059340).

25221123434452 is a wasteful number, since it uses less digits than its factorization.

25221123434452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167428919 (or 1167428917 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

The spelling of 25221123434452 in words is "twenty-five trillion, two hundred twenty-one billion, one hundred twenty-three million, four hundred thirty-four thousand, four hundred fifty-two".