25790843125 has 10 divisors (see below), whose sum is σ = 32228238350. Its totient is φ = 20632674000.

The previous prime is 25790843077. The next prime is 25790843131. The reversal of 25790843125 is 52134809752.

It can be written as a sum of positive squares in 5 ways, for example, as 12232802404 + 13558040721 = 110602^2 + 116439^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25790843125 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20632050 + ... + 20633299.

It is an arithmetic number, because the mean of its divisors is an integer number (3222823835).

Almost surely, 2^25790843125 is an apocalyptic number.

25790843125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25790843125 is a deficient number, since it is larger than the sum of its proper divisors (6437395225).

25790843125 is an frugal number, since it uses more digits than its factorization.

25790843125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41265369 (or 41265354 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 25790843125 in words is "twenty-five billion, seven hundred ninety million, eight hundred forty-three thousand, one hundred twenty-five".