25775825 has 12 divisors (see below), whose sum is σ = 33842700. Its totient is φ = 19407360.

The previous prime is 25775819. The next prime is 25775843. The reversal of 25775825 is 52857752.

It can be written as a sum of positive squares in 6 ways, for example, as 1401856 + 24373969 = 1184^2 + 4937^2 .

It is not a de Polignac number, because 25775825 - 2¹⁴ = 25759441 is a prime.

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, 29900 + ... + 30749.

It is an arithmetic number, because the mean of its divisors is an integer number (2820225).

Almost surely, 2^25775825 is an apocalyptic number.

25775825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25775825 is a deficient number, since it is larger than the sum of its proper divisors (8066875).

25775825 is a wasteful number, since it uses less digits than its factorization.

25775825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60676 (or 60671 counting only the distinct ones).

The product of its digits is 196000, while the sum is 41.

The square root of 25775825 is about 5076.9897577206. The cubic root of 25775825 is about 295.3957152366.

The spelling of 25775825 in words is "twenty-five million, seven hundred seventy-five thousand, eight hundred twenty-five".