25436022453 has 6 divisors (see below), whose sum is σ = 36740921334. Its totient is φ = 16957348296.

The previous prime is 25436022439. The next prime is 25436022481. The reversal of 25436022453 is 35422063452.

25436022453 is a `hidden beast` number, since 2 + 5 + 4 + 3 + 602 + 2 + 45 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24890426289 + 545596164 = 157767^2 + 23358^2 .

It is not a de Polignac number, because 25436022453 - 2²⁰ = 25434973877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25436020453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1413112350 + ... + 1413112367.

It is an arithmetic number, because the mean of its divisors is an integer number (6123486889).

Almost surely, 2^25436022453 is an apocalyptic number.

It is an amenable number.

25436022453 is a deficient number, since it is larger than the sum of its proper divisors (11304898881).

25436022453 is a wasteful number, since it uses less digits than its factorization.

25436022453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826224723 (or 2826224720 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The spelling of 25436022453 in words is "twenty-five billion, four hundred thirty-six million, twenty-two thousand, four hundred fifty-three".