25250780025 has 36 divisors (see below), whose sum is σ = 46902036272. Its totient is φ = 13467079440.

The previous prime is 25250780011. The next prime is 25250780039. The reversal of 25250780025 is 52008705252.

25250780025 is a `hidden beast` number, since 2 + 52 + 507 + 80 + 0 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (25250780011) and next prime (25250780039).

It is not a de Polignac number, because 25250780025 - 2¹⁵ = 25250747257 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2072179 + ... + 2084328.

Almost surely, 2^25250780025 is an apocalyptic number.

25250780025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25250780025 is a deficient number, since it is larger than the sum of its proper divisors (21651256247).

25250780025 is an equidigital number, since it uses as much as digits as its factorization.

25250780025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156532 (or 4156515 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The spelling of 25250780025 in words is "twenty-five billion, two hundred fifty million, seven hundred eighty thousand, twenty-five".