25466866452 has 48 divisors (see below), whose sum is σ = 66051417600. Its totient is φ = 8485585920.

The previous prime is 25466866441. The next prime is 25466866457.

25466866452 is a `hidden beast` number, since 2 + 54 + 66 + 86 + 6 + 452 = 666.

25466866452 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25466866452² (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 (25466866457) 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 15 ways as a sum of consecutive naturals, for example, 234324 + ... + 325332.

It is an arithmetic number, because the mean of its divisors is an integer number (1376071200).

Almost surely, 2^25466866452 is an apocalyptic number.

It is an amenable number.

25466866452 is an abundant number, since it is smaller than the sum of its proper divisors (40584551148).

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

25466866452 is a wasteful number, since it uses less digits than its factorization.

25466866452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93613 (or 93605 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 25466866452 in words is "twenty-five billion, four hundred sixty-six million, eight hundred sixty-six thousand, four hundred fifty-two".