25020131 has 16 divisors (see below), whose sum is σ = 27509760. Its totient is φ = 22667040.

The previous prime is 25020097. The next prime is 25020133. The reversal of 25020131 is 13102052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25020131 - 2¹⁰ = 25019107 is a prime.

It is a super-2 number, since 2×25020131² = 1252013910514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25020133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62825 + ... + 63221.

It is an arithmetic number, because the mean of its divisors is an integer number (1719360).

Almost surely, 2^25020131 is an apocalyptic number.

25020131 is a deficient number, since it is larger than the sum of its proper divisors (2489629).

25020131 is a wasteful number, since it uses less digits than its factorization.

25020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

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

The square root of 25020131 is about 5002.0126949059. The cubic root of 25020131 is about 292.4802372992.

Adding to 25020131 its reverse (13102052), we get a palindrome (38122183).

The spelling of 25020131 in words is "twenty-five million, twenty thousand, one hundred thirty-one".