25104779558089 has 27 divisors (see below), whose sum is σ = 32100229156653. Its totient is φ = 19561865261400.

The previous prime is 25104779558081. The next prime is 25104779558167. The reversal of 25104779558089 is 98085597740152.

The square root of 25104779558089 is 5010467.

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

It is not a de Polignac number, because 25104779558089 - 2³ = 25104779558081 is a prime.

It is a super-2 number, since 2×25104779558089² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25104779558081) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 385773424 + ... + 385838494.

Almost surely, 2^{25104779558089} is an apocalyptic number.

25104779558089 is the 5010467-th square number.

25104779558089 is the 2505234-th centered octagonal number.

It is an amenable number.

25104779558089 is a deficient number, since it is larger than the sum of its proper divisors (6995449598564).

25104779558089 is an frugal number, since it uses more digits than its factorization.

25104779558089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130178 (or 65089 counting only the distinct ones).

The product of its (nonzero) digits is 254016000, while the sum is 70.

The spelling of 25104779558089 in words is "twenty-five trillion, one hundred four billion, seven hundred seventy-nine million, five hundred fifty-eight thousand, eighty-nine".