25125001265131 has 4 divisors (see below), whose sum is σ = 25137892494000. Its totient is φ = 25112110036264.

The previous prime is 25125001265093. The next prime is 25125001265171. The reversal of 25125001265131 is 13156210052152.

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 25125001265131 - 2³¹ = 25122853781483 is a prime.

It is a super-2 number, since 2×25125001265131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25125001265171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6445611511 + ... + 6445615408.

It is an arithmetic number, because the mean of its divisors is an integer number (6284473123500).

Almost surely, 2^{25125001265131} is an apocalyptic number.

25125001265131 is a deficient number, since it is larger than the sum of its proper divisors (12891228869).

25125001265131 is a wasteful number, since it uses less digits than its factorization.

25125001265131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891228868.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 25125001265131 in words is "twenty-five trillion, one hundred twenty-five billion, one million, two hundred sixty-five thousand, one hundred thirty-one".