25606100425 has 12 divisors (see below), whose sum is σ = 31758883596. Its totient is φ = 20480158400.

The previous prime is 25606100411. The next prime is 25606100431. The reversal of 25606100425 is 52400160652.

It can be written as a sum of positive squares in 6 ways, for example, as 53758224 + 25552342201 = 7332^2 + 159851^2 .

It is not a de Polignac number, because 25606100425 - 2⁷ = 25606100297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5314 + ... + 226363.

It is an arithmetic number, because the mean of its divisors is an integer number (2646573633).

Almost surely, 2^25606100425 is an apocalyptic number.

25606100425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25606100425 is a deficient number, since it is larger than the sum of its proper divisors (6152783171).

25606100425 is a wasteful number, since it uses less digits than its factorization.

25606100425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236108 (or 236103 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 25606100425 in words is "twenty-five billion, six hundred six million, one hundred thousand, four hundred twenty-five".