25634191772484 has 45 divisors (see below), whose sum is σ = 67013079081487. Its totient is φ = 8544700212696.

The previous prime is 25634191772447. The next prime is 25634191772489. The reversal of 25634191772484 is 48427719143652.

The square root of 25634191772484 is 5063022.

It is a perfect power (a square), and thus also a powerful number.

25634191772484 is a `hidden beast` number, since 2 + 5 + 6 + 3 + 419 + 177 + 2 + 48 + 4 = 666.

It is a super-2 number, since 2×25634191772484² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25634191772489) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 90993757 + ... + 91275035.

Almost surely, 2^{25634191772484} is an apocalyptic number.

25634191772484 is the 5063022-nd square number.

It is an amenable number.

25634191772484 is an abundant number, since it is smaller than the sum of its proper divisors (41378887309003).

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

25634191772484 is an frugal number, since it uses more digits than its factorization.

25634191772484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562574 (or 281284 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 25634191772484 in words is "twenty-five trillion, six hundred thirty-four billion, one hundred ninety-one million, seven hundred seventy-two thousand, four hundred eighty-four".