25745487 has 16 divisors (see below), whose sum is σ = 36360960. Its totient is φ = 16169472.

The previous prime is 25745479. The next prime is 25745509. The reversal of 25745487 is 78454752.

It is not a de Polignac number, because 25745487 - 2³ = 25745479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25745087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839 + ... + 7407.

It is an arithmetic number, because the mean of its divisors is an integer number (2272560).

Almost surely, 2^25745487 is an apocalyptic number.

25745487 is a deficient number, since it is larger than the sum of its proper divisors (10615473).

25745487 is a wasteful number, since it uses less digits than its factorization.

25745487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its digits is 313600, while the sum is 42.

The square root of 25745487 is about 5074.0010839573. The cubic root of 25745487 is about 295.2797767106.

The spelling of 25745487 in words is "twenty-five million, seven hundred forty-five thousand, four hundred eighty-seven".