25673487 has 32 divisors (see below), whose sum is σ = 40857600. Its totient is φ = 14031360.

The previous prime is 25673447. The next prime is 25673509. The reversal of 25673487 is 78437652.

It is not a de Polignac number, because 25673487 - 2⁶ = 25673423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25673407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73389 + ... + 73737.

It is an arithmetic number, because the mean of its divisors is an integer number (1276800).

Almost surely, 2^25673487 is an apocalyptic number.

25673487 is a deficient number, since it is larger than the sum of its proper divisors (15184113).

25673487 is a wasteful number, since it uses less digits than its factorization.

25673487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503.

The product of its digits is 282240, while the sum is 42.

The square root of 25673487 is about 5066.9011239613. The cubic root of 25673487 is about 295.0042592510.

The spelling of 25673487 in words is "twenty-five million, six hundred seventy-three thousand, four hundred eighty-seven".