26453396025 has 81 divisors (see below), whose sum is σ = 55152245421. Its totient is φ = 12085174080.

The previous prime is 26453395993. The next prime is 26453396027. The reversal of 26453396025 is 52069335462.

The square root of 26453396025 is 162645.

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

26453396025 is a `hidden beast` number, since 2 + 6 + 4 + 5 + 3 + 39 + 602 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2408551929 + 24044844096 = 49077^2 + 155064^2 .

It is not a de Polignac number, because 26453396025 - 2⁵ = 26453395993 is a prime.

It is a super-2 number, since 2×26453396025² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (26453396027) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 17076951 + ... + 17078499.

Almost surely, 2^26453396025 is an apocalyptic number.

26453396025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26453396025 is the 162645-th square number.

26453396025 is the 81323-rd centered octagonal number.

It is an amenable number.

26453396025 is an abundant number, since it is smaller than the sum of its proper divisors (28698849396).

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

26453396025 is an equidigital number, since it uses as much as digits as its factorization.

26453396025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 26453396025 in words is "twenty-six billion, four hundred fifty-three million, three hundred ninety-six thousand, twenty-five".