25401260 has 12 divisors (see below), whose sum is σ = 53342688. Its totient is φ = 10160496.

The previous prime is 25401253. The next prime is 25401287. The reversal of 25401260 is 6210452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1270063 = 25401260 / (2 + 5 + 4 + 0 + 1 + 2 + 6 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635012 + ... + 635051.

It is an arithmetic number, because the mean of its divisors is an integer number (4445224).

Almost surely, 2^25401260 is an apocalyptic number.

25401260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25401260 is an abundant number, since it is smaller than the sum of its proper divisors (27941428).

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

25401260 is a wasteful number, since it uses less digits than its factorization.

25401260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270072 (or 1270070 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25401260 is about 5039.9662697284. The cubic root of 25401260 is about 293.9578664535.

The spelling of 25401260 in words is "twenty-five million, four hundred one thousand, two hundred sixty".