25486920 has 64 divisors (see below), whose sum is σ = 84960000. Its totient is φ = 6796224.

The previous prime is 25486907. The next prime is 25486931. The reversal of 25486920 is 2968452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10720 + ... + 12879.

It is an arithmetic number, because the mean of its divisors is an integer number (1327500).

Almost surely, 2^25486920 is an apocalyptic number.

25486920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25486920 is an abundant number, since it is smaller than the sum of its proper divisors (59473080).

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

25486920 is a wasteful number, since it uses less digits than its factorization.

25486920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23619 (or 23609 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 25486920 is about 5048.4571900730. The cubic root of 25486920 is about 294.2879311648.

The spelling of 25486920 in words is "twenty-five million, four hundred eighty-six thousand, nine hundred twenty".