25480660 has 24 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 10062624.

The previous prime is 25480657. The next prime is 25480661. The reversal of 25480660 is 6608452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6484 + ... + 9643.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^25480660 is an apocalyptic number.

25480660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25480660 is an abundant number, since it is smaller than the sum of its proper divisors (28709420).

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

25480660 is a wasteful number, since it uses less digits than its factorization.

25480660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16215 (or 16213 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 25480660 is about 5047.8371606065. The cubic root of 25480660 is about 294.2638352325.

The spelling of 25480660 in words is "twenty-five million, four hundred eighty thousand, six hundred sixty".