25142526361 has 4 divisors (see below), whose sum is σ = 25143011712. Its totient is φ = 25142041012.

The previous prime is 25142526323. The next prime is 25142526371. The reversal of 25142526361 is 16362524152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25142526361 is a prime.

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 25142526361.

It is not an unprimeable number, because it can be changed into a prime (25142526371) 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 3 ways as a sum of consecutive naturals, for example, 154225 + ... + 272158.

It is an arithmetic number, because the mean of its divisors is an integer number (6285752928).

Almost surely, 2^25142526361 is an apocalyptic number.

It is an amenable number.

25142526361 is a deficient number, since it is larger than the sum of its proper divisors (485351).

25142526361 is an equidigital number, since it uses as much as digits as its factorization.

25142526361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485350.

The product of its digits is 86400, while the sum is 37.

The spelling of 25142526361 in words is "twenty-five billion, one hundred forty-two million, five hundred twenty-six thousand, three hundred sixty-one".