25731485 has 16 divisors (see below), whose sum is σ = 33680640. Its totient is φ = 18757440.

The previous prime is 25731479. The next prime is 25731499. The reversal of 25731485 is 58413752.

It is a happy number.

It is not a de Polignac number, because 25731485 - 2⁴ = 25731469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2630 + ... + 7640.

It is an arithmetic number, because the mean of its divisors is an integer number (2105040).

Almost surely, 2^25731485 is an apocalyptic number.

It is an amenable number.

25731485 is a deficient number, since it is larger than the sum of its proper divisors (7949155).

25731485 is a wasteful number, since it uses less digits than its factorization.

25731485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108.

The product of its digits is 33600, while the sum is 35.

The square root of 25731485 is about 5072.6211173317. The cubic root of 25731485 is about 295.2262364896.

The spelling of 25731485 in words is "twenty-five million, seven hundred thirty-one thousand, four hundred eighty-five".