25267876452 has 360 divisors, whose sum is σ = 86364565056. Its totient is φ = 6373116288.

The previous prime is 25267876411. The next prime is 25267876453. The reversal of 25267876452 is 25467876252.

25267876452 is a `hidden beast` number, since 2 + 52 + 6 + 78 + 76 + 452 = 666.

It is a super-2 number, since 2×25267876452² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25267876453) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4744263 + ... + 4749585.

Almost surely, 2^25267876452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25267876452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43182282528).

25267876452 is an abundant number, since it is smaller than the sum of its proper divisors (61096688604).

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

25267876452 is a wasteful number, since it uses less digits than its factorization.

25267876452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389 (or 5371 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 25267876452 in words is "twenty-five billion, two hundred sixty-seven million, eight hundred seventy-six thousand, four hundred fifty-two".