25486517 has 12 divisors (see below), whose sum is σ = 29838816. Its totient is φ = 21704760.

The previous prime is 25486511. The next prime is 25486603. The reversal of 25486517 is 71568452.

It is not a de Polignac number, because 25486517 - 2⁴ = 25486501 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25486511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6392 + ... + 9582.

It is an arithmetic number, because the mean of its divisors is an integer number (2486568).

Almost surely, 2^25486517 is an apocalyptic number.

It is an amenable number.

25486517 is a deficient number, since it is larger than the sum of its proper divisors (4352299).

25486517 is a wasteful number, since it uses less digits than its factorization.

25486517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368 (or 3361 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 25486517 is about 5048.4172767314. The cubic root of 25486517 is about 294.2863800599.

The spelling of 25486517 in words is "twenty-five million, four hundred eighty-six thousand, five hundred seventeen".