25645260 has 24 divisors (see below), whose sum is σ = 71806896. Its totient is φ = 6838720.

The previous prime is 25645247. The next prime is 25645267. The reversal of 25645260 is 6254652.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25645267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213651 + ... + 213770.

It is an arithmetic number, because the mean of its divisors is an integer number (2991954).

Almost surely, 2^25645260 is an apocalyptic number.

25645260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25645260 is an abundant number, since it is smaller than the sum of its proper divisors (46161636).

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

25645260 is a wasteful number, since it uses less digits than its factorization.

25645260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427433 (or 427431 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25645260 is about 5064.1149276058. The cubic root of 25645260 is about 294.8961043691.

The spelling of 25645260 in words is "twenty-five million, six hundred forty-five thousand, two hundred sixty".