25160740 has 72 divisors (see below), whose sum is σ = 59859576. Its totient is φ = 8870400.

The previous prime is 25160687. The next prime is 25160749. The reversal of 25160740 is 4706152.

It can be written as a sum of positive squares in 4 ways, for example, as 8952064 + 16208676 = 2992^2 + 4026^2 .

It is not an unprimeable number, because it can be changed into a prime (25160749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89400 + ... + 89680.

It is an arithmetic number, because the mean of its divisors is an integer number (831383).

Almost surely, 2^25160740 is an apocalyptic number.

25160740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25160740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29929788).

25160740 is an abundant number, since it is smaller than the sum of its proper divisors (34698836).

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

25160740 is a wasteful number, since it uses less digits than its factorization.

25160740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 25160740 is about 5016.0482453820. The cubic root of 25160740 is about 293.0271109891.

Adding to 25160740 its reverse (4706152), we get a palindrome (29866892).

The spelling of 25160740 in words is "twenty-five million, one hundred sixty thousand, seven hundred forty".