25480646 has 16 divisors (see below), whose sum is σ = 38814720. Its totient is φ = 12544200.

The previous prime is 25480643. The next prime is 25480657. The reversal of 25480646 is 64608452.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480643) 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, 41675 + ... + 42281.

It is an arithmetic number, because the mean of its divisors is an integer number (2425920).

Almost surely, 2^25480646 is an apocalyptic number.

25480646 is a deficient number, since it is larger than the sum of its proper divisors (13334074).

25480646 is a wasteful number, since it uses less digits than its factorization.

25480646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 25480646 is about 5047.8357738738. The cubic root of 25480646 is about 294.2637813394.

The spelling of 25480646 in words is "twenty-five million, four hundred eighty thousand, six hundred forty-six".