25494740 has 12 divisors (see below), whose sum is σ = 53538996. Its totient is φ = 10197888.

The previous prime is 25494731. The next prime is 25494757. The reversal of 25494740 is 4749452.

It can be written as a sum of positive squares in 2 ways, for example, as 4682896 + 20811844 = 2164^2 + 4562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25494740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637349 + ... + 637388.

It is an arithmetic number, because the mean of its divisors is an integer number (4461583).

Almost surely, 2^25494740 is an apocalyptic number.

25494740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25494740 is an abundant number, since it is smaller than the sum of its proper divisors (28044256).

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

25494740 is a wasteful number, since it uses less digits than its factorization.

25494740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274746 (or 1274744 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 25494740 is about 5049.2316247128. The cubic root of 25494740 is about 294.3180262920.

The spelling of 25494740 in words is "twenty-five million, four hundred ninety-four thousand, seven hundred forty".