25200131 has 16 divisors (see below), whose sum is σ = 28477440. Its totient is φ = 22102080.

The previous prime is 25200121. The next prime is 25200151. The reversal of 25200131 is 13100252.

It is a happy number.

It is not a de Polignac number, because 25200131 - 2⁶ = 25200067 is a prime.

It is a super-2 number, since 2×25200131² = 1270093204834322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25200121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40535 + ... + 41151.

It is an arithmetic number, because the mean of its divisors is an integer number (1779840).

Almost surely, 2^25200131 is an apocalyptic number.

25200131 is a deficient number, since it is larger than the sum of its proper divisors (3277309).

25200131 is a wasteful number, since it uses less digits than its factorization.

25200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 25200131 is about 5019.9732070998. The cubic root of 25200131 is about 293.1799497973.

Adding to 25200131 its reverse (13100252), we get a palindrome (38300383).

The spelling of 25200131 in words is "twenty-five million, two hundred thousand, one hundred thirty-one".