25705575 has 72 divisors (see below), whose sum is σ = 55452800. Its totient is φ = 11119680.

The previous prime is 25705553. The next prime is 25705591. The reversal of 25705575 is 57550752.

It is not a de Polignac number, because 25705575 - 2⁵ = 25705543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29496 + ... + 30354.

Almost surely, 2^25705575 is an apocalyptic number.

25705575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25705575 is an abundant number, since it is smaller than the sum of its proper divisors (29747225).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25705575 is a wasteful number, since it uses less digits than its factorization.

25705575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The square root of 25705575 is about 5070.0665676103. The cubic root of 25705575 is about 295.1271117443.

It can be divided in two parts, 25 and 705575, that added together give a square (705600 = 840²).

The spelling of 25705575 in words is "twenty-five million, seven hundred five thousand, five hundred seventy-five".