25727565 has 16 divisors (see below), whose sum is σ = 42041088. Its totient is φ = 13429056.

The previous prime is 25727557. The next prime is 25727587. The reversal of 25727565 is 56572752.

It is not a de Polignac number, because 25727565 - 2³ = 25727557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17542 + ... + 18951.

It is an arithmetic number, because the mean of its divisors is an integer number (2627568).

Almost surely, 2^25727565 is an apocalyptic number.

It is an amenable number.

25727565 is a deficient number, since it is larger than the sum of its proper divisors (16313523).

25727565 is a wasteful number, since it uses less digits than its factorization.

25727565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36548.

The product of its digits is 147000, while the sum is 39.

The square root of 25727565 is about 5072.2347146007. The cubic root of 25727565 is about 295.2112438891.

The spelling of 25727565 in words is "twenty-five million, seven hundred twenty-seven thousand, five hundred sixty-five".