25425975 has 24 divisors (see below), whose sum is σ = 42292432. Its totient is φ = 13478400.

The previous prime is 25425949. The next prime is 25425977. The reversal of 25425975 is 57952452.

It is not a de Polignac number, because 25425975 - 2⁷ = 25425847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425977) 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, 12639 + ... + 14511.

Almost surely, 2^25425975 is an apocalyptic number.

25425975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25425975 is a deficient number, since it is larger than the sum of its proper divisors (16866457).

25425975 is a wasteful number, since it uses less digits than its factorization.

25425975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2062 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 25425975 is about 5042.4175749337. The cubic root of 25425975 is about 294.0531742407.

The spelling of 25425975 in words is "twenty-five million, four hundred twenty-five thousand, nine hundred seventy-five".