25014269281 has 9 divisors (see below), whose sum is σ = 25263274323. Its totient is φ = 24767699400.

The previous prime is 25014269257. The next prime is 25014269297. The reversal of 25014269281 is 18296241052.

It is a happy number.

The square root of 25014269281 is 158159.

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

It can be written as a sum of positive squares in only one way, i.e., 17434825681 + 7579443600 = 132041^2 + 87060^2 .

It is not a de Polignac number, because 25014269281 - 2⁷ = 25014269153 is a prime.

It is a super-2 number, since 2×25014269281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25014269881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17238606 + ... + 17240056.

Almost surely, 2^25014269281 is an apocalyptic number.

25014269281 is the 158159-th square number.

25014269281 is the 79080-th centered octagonal number.

It is an amenable number.

25014269281 is a deficient number, since it is larger than the sum of its proper divisors (249005042).

25014269281 is an frugal number, since it uses more digits than its factorization.

25014269281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 25014269281 in words is "twenty-five billion, fourteen million, two hundred sixty-nine thousand, two hundred eighty-one".