25142253133 has 4 divisors (see below), whose sum is σ = 25150584160. Its totient is φ = 25133922108.

The previous prime is 25142253131. The next prime is 25142253137. The reversal of 25142253133 is 33135224152.

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 not a de Polignac number, because 25142253133 - 2¹ = 25142253131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25142253095 and 25142253104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142253131) 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, 4160985 + ... + 4167022.

It is an arithmetic number, because the mean of its divisors is an integer number (6287646040).

Almost surely, 2^25142253133 is an apocalyptic number.

It is an amenable number.

25142253133 is a deficient number, since it is larger than the sum of its proper divisors (8331027).

25142253133 is an equidigital number, since it uses as much as digits as its factorization.

25142253133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331026.

The product of its digits is 21600, while the sum is 31.

Adding to 25142253133 its reverse (33135224152), we get a palindrome (58277477285).

The spelling of 25142253133 in words is "twenty-five billion, one hundred forty-two million, two hundred fifty-three thousand, one hundred thirty-three".