25352330131 has 4 divisors (see below), whose sum is σ = 26170147264. Its totient is φ = 24534513000.

The previous prime is 25352330123. The next prime is 25352330137. The reversal of 25352330131 is 13103325352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25352330131 - 2³ = 25352330123 is a prime.

It is a super-2 number, since 2×25352330131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25352330131.

It is not an unprimeable number, because it can be changed into a prime (25352330137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408908520 + ... + 408908581.

It is an arithmetic number, because the mean of its divisors is an integer number (6542536816).

Almost surely, 2^25352330131 is an apocalyptic number.

25352330131 is a deficient number, since it is larger than the sum of its proper divisors (817817133).

25352330131 is an equidigital number, since it uses as much as digits as its factorization.

25352330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817817132.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 25352330131 its reverse (13103325352), we get a palindrome (38455655483).

The spelling of 25352330131 in words is "twenty-five billion, three hundred fifty-two million, three hundred thirty thousand, one hundred thirty-one".