25783005725 has 24 divisors (see below), whose sum is σ = 32536108032. Its totient is φ = 20262628800.

The previous prime is 25783005713. The next prime is 25783005737. The reversal of 25783005725 is 52750038752.

It is an interprime number because it is at equal distance from previous prime (25783005713) and next prime (25783005737).

It is not a de Polignac number, because 25783005725 - 2¹⁶ = 25782940189 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 1244804 + ... + 1265346.

It is an arithmetic number, because the mean of its divisors is an integer number (1355671168).

Almost surely, 2^25783005725 is an apocalyptic number.

25783005725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25783005725 is a deficient number, since it is larger than the sum of its proper divisors (6753102307).

25783005725 is a wasteful number, since it uses less digits than its factorization.

25783005725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21437 (or 21432 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 25783005725 in words is "twenty-five billion, seven hundred eighty-three million, five thousand, seven hundred twenty-five".