25955775 has 24 divisors (see below), whose sum is σ = 47682960. Its totient is φ = 13842720.

The previous prime is 25955717. The next prime is 25955779. The reversal of 25955775 is 57755952.

25955775 is a `hidden beast` number, since 2 + 595 + 57 + 7 + 5 = 666.

It is not a de Polignac number, because 25955775 - 2⁹ = 25955263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25955775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25955779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18552 + ... + 19901.

It is an arithmetic number, because the mean of its divisors is an integer number (1986790).

Almost surely, 2^25955775 is an apocalyptic number.

25955775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25955775 is a deficient number, since it is larger than the sum of its proper divisors (21727185).

25955775 is a wasteful number, since it uses less digits than its factorization.

25955775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38472 (or 38461 counting only the distinct ones).

The product of its digits is 551250, while the sum is 45.

The square root of 25955775 is about 5094.6810498794. The cubic root of 25955775 is about 296.0815417849.

The spelling of 25955775 in words is "twenty-five million, nine hundred fifty-five thousand, seven hundred seventy-five".