25860920 has 16 divisors (see below), whose sum is σ = 58187160. Its totient is φ = 10344352.

The previous prime is 25860917. The next prime is 25860929. The reversal of 25860920 is 2906852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25860929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323222 + ... + 323301.

Almost surely, 2^25860920 is an apocalyptic number.

25860920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25860920 is an abundant number, since it is smaller than the sum of its proper divisors (32326240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25860920 is a wasteful number, since it uses less digits than its factorization.

25860920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646534 (or 646530 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 25860920 is about 5085.3633105217. The cubic root of 25860920 is about 295.7204263091.

The spelling of 25860920 in words is "twenty-five million, eight hundred sixty thousand, nine hundred twenty".