25512414425 has 6 divisors (see below), whose sum is σ = 31635393918. Its totient is φ = 20409931520.

The previous prime is 25512414413. The next prime is 25512414439. The reversal of 25512414425 is 52441421552.

It can be written as a sum of positive squares in 3 ways, for example, as 4784765584 + 20727648841 = 69172^2 + 143971^2 .

It is not a de Polignac number, because 25512414425 - 2¹⁰ = 25512413401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510248264 + ... + 510248313.

It is an arithmetic number, because the mean of its divisors is an integer number (5272565653).

Almost surely, 2^25512414425 is an apocalyptic number.

25512414425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25512414425 is a deficient number, since it is larger than the sum of its proper divisors (6122979493).

25512414425 is a wasteful number, since it uses less digits than its factorization.

25512414425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020496587 (or 1020496582 counting only the distinct ones).

The product of its digits is 64000, while the sum is 35.

Adding to 25512414425 its reverse (52441421552), we get a palindrome (77953835977).

The spelling of 25512414425 in words is "twenty-five billion, five hundred twelve million, four hundred fourteen thousand, four hundred twenty-five".