25475140 has 12 divisors (see below), whose sum is σ = 53497836. Its totient is φ = 10190048.

The previous prime is 25475119. The next prime is 25475141. The reversal of 25475140 is 4157452.

It can be written as a sum of positive squares in 2 ways, for example, as 16760836 + 8714304 = 4094^2 + 2952^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25475099 and 25475108.

It is not an unprimeable number, because it can be changed into a prime (25475141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636859 + ... + 636898.

It is an arithmetic number, because the mean of its divisors is an integer number (4458153).

Almost surely, 2^25475140 is an apocalyptic number.

25475140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25475140 is an abundant number, since it is smaller than the sum of its proper divisors (28022696).

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

25475140 is a wasteful number, since it uses less digits than its factorization.

25475140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273766 (or 1273764 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 25475140 is about 5047.2903621646. The cubic root of 25475140 is about 294.2425844266.

The spelling of 25475140 in words is "twenty-five million, four hundred seventy-five thousand, one hundred forty".