25131016 has 16 divisors (see below), whose sum is σ = 47370240. Its totient is φ = 12498960.

The previous prime is 25131011. The next prime is 25131017. The reversal of 25131016 is 61013152.

It is a junction number, because it is equal to n+sod(n) for n = 25130984 and 25131002.

It is not an unprimeable number, because it can be changed into a prime (25131011) by changing a digit.

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, 6696 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (2960640).

Almost surely, 2^25131016 is an apocalyptic number.

It is an amenable number.

25131016 is a deficient number, since it is larger than the sum of its proper divisors (22239224).

25131016 is a wasteful number, since it uses less digits than its factorization.

25131016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16644 (or 16640 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 25131016 is about 5013.0844796393. The cubic root of 25131016 is about 292.9116749305.

Adding to 25131016 its reverse (61013152), we get a palindrome (86144168).

The spelling of 25131016 in words is "twenty-five million, one hundred thirty-one thousand, sixteen".