25320276531 has 12 divisors (see below), whose sum is σ = 39898617720. Its totient is φ = 15345622080.

The previous prime is 25320276517. The next prime is 25320276571. The reversal of 25320276531 is 13567202352.

25320276531 is a `hidden beast` number, since 2 + 53 + 2 + 0 + 2 + 76 + 531 = 666.

It is not a de Polignac number, because 25320276531 - 2⁶ = 25320276467 is a prime.

It is a super-2 number, since 2×25320276531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25320276571) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 127880086 + ... + 127880283.

It is an arithmetic number, because the mean of its divisors is an integer number (3324884810).

Almost surely, 2^25320276531 is an apocalyptic number.

25320276531 is a deficient number, since it is larger than the sum of its proper divisors (14578341189).

25320276531 is a wasteful number, since it uses less digits than its factorization.

25320276531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255760386 (or 255760383 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

Adding to 25320276531 its reverse (13567202352), we get a palindrome (38887478883).

The spelling of 25320276531 in words is "twenty-five billion, three hundred twenty million, two hundred seventy-six thousand, five hundred thirty-one".