25121153119 has 4 divisors (see below), whose sum is σ = 25122035944. Its totient is φ = 25120270296.

The previous prime is 25121153117. The next prime is 25121153137. The reversal of 25121153119 is 91135112152.

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 25121153119 - 2¹ = 25121153117 is a prime.

It is a super-2 number, since 2×25121153119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25121153117) 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, 397257 + ... + 456130.

It is an arithmetic number, because the mean of its divisors is an integer number (6280508986).

Almost surely, 2^25121153119 is an apocalyptic number.

25121153119 is a deficient number, since it is larger than the sum of its proper divisors (882825).

25121153119 is an equidigital number, since it uses as much as digits as its factorization.

25121153119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882824.

The product of its digits is 2700, while the sum is 31.

The spelling of 25121153119 in words is "twenty-five billion, one hundred twenty-one million, one hundred fifty-three thousand, one hundred nineteen".