25428793525 has 12 divisors (see below), whose sum is σ = 31539658912. Its totient is φ = 20337902640.

The previous prime is 25428793483. The next prime is 25428793547. The reversal of 25428793525 is 52539782452.

It is not a de Polignac number, because 25428793525 - 2¹¹ = 25428791477 is a prime.

It is a Duffinian number.

It is a congruent 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, 25617 + ... + 226966.

Almost surely, 2^25428793525 is an apocalyptic number.

25428793525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25428793525 is a deficient number, since it is larger than the sum of its proper divisors (6110865387).

25428793525 is a wasteful number, since it uses less digits than its factorization.

25428793525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256620 (or 256615 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The spelling of 25428793525 in words is "twenty-five billion, four hundred twenty-eight million, seven hundred ninety-three thousand, five hundred twenty-five".