25605075 has 24 divisors (see below), whose sum is σ = 42573168. Its totient is φ = 13578880.

The previous prime is 25605071. The next prime is 25605089. The reversal of 25605075 is 57050652.

It is not a de Polignac number, because 25605075 - 2² = 25605071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25605071) 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, 13909 + ... + 15641.

It is an arithmetic number, because the mean of its divisors is an integer number (1773882).

Almost surely, 2^25605075 is an apocalyptic number.

25605075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25605075 is a deficient number, since it is larger than the sum of its proper divisors (16968093).

25605075 is a wasteful number, since it uses less digits than its factorization.

25605075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 25605075 is about 5060.1457488891. The cubic root of 25605075 is about 294.7419940834.

The spelling of 25605075 in words is "twenty-five million, six hundred five thousand, seventy-five".