25161316 has 12 divisors (see below), whose sum is σ = 44071020. Its totient is φ = 12569600.

The previous prime is 25161307. The next prime is 25161329. The reversal of 25161316 is 61316152.

It can be written as a sum of positive squares in 2 ways, for example, as 16728100 + 8433216 = 4090^2 + 2904^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4440 + ... + 8368.

It is an arithmetic number, because the mean of its divisors is an integer number (3672585).

Almost surely, 2^25161316 is an apocalyptic number.

It is an amenable number.

25161316 is a deficient number, since it is larger than the sum of its proper divisors (18909704).

25161316 is a wasteful number, since it uses less digits than its factorization.

25161316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534 (or 5532 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 25161316 is about 5016.1056607691. The cubic root of 25161316 is about 293.0293470432.

Adding to 25161316 its reverse (61316152), we get a palindrome (86477468).

The spelling of 25161316 in words is "twenty-five million, one hundred sixty-one thousand, three hundred sixteen".