25125104531 has 4 divisors (see below), whose sum is σ = 25125835032. Its totient is φ = 25124374032.

The previous prime is 25125104509. The next prime is 25125104567. The reversal of 25125104531 is 13540152152.

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 25125104531 - 2¹⁴ = 25125088147 is a prime.

It is a super-2 number, since 2×25125104531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25125104494 and 25125104503.

It is not an unprimeable number, because it can be changed into a prime (25125104231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310970 + ... + 383343.

It is an arithmetic number, because the mean of its divisors is an integer number (6281458758).

Almost surely, 2^25125104531 is an apocalyptic number.

25125104531 is a deficient number, since it is larger than the sum of its proper divisors (730501).

25125104531 is an equidigital number, since it uses as much as digits as its factorization.

25125104531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730500.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 25125104531 its reverse (13540152152), we get a palindrome (38665256683).

The spelling of 25125104531 in words is "twenty-five billion, one hundred twenty-five million, one hundred four thousand, five hundred thirty-one".