25310432425 has 6 divisors (see below), whose sum is σ = 31384936238. Its totient is φ = 20248345920.

The previous prime is 25310432419. The next prime is 25310432429. The reversal of 25310432425 is 52423401352.

It can be written as a sum of positive squares in 3 ways, for example, as 82828201 + 25227604224 = 9101^2 + 158832^2 .

It is not a de Polignac number, because 25310432425 - 2²⁹ = 24773561513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25310432429) 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, 506208624 + ... + 506208673.

Almost surely, 2^25310432425 is an apocalyptic number.

25310432425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25310432425 is a deficient number, since it is larger than the sum of its proper divisors (6074503813).

25310432425 is a wasteful number, since it uses less digits than its factorization.

25310432425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012417307 (or 1012417302 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 25310432425 its reverse (52423401352), we get a palindrome (77733833777).

The spelling of 25310432425 in words is "twenty-five billion, three hundred ten million, four hundred thirty-two thousand, four hundred twenty-five".