25126540123 has 8 divisors (see below), whose sum is σ = 25807880880. Its totient is φ = 24445317600.

The previous prime is 25126540079. The next prime is 25126540157. The reversal of 25126540123 is 32104562152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25126540123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25126540183) 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 7 ways as a sum of consecutive naturals, for example, 556548 + ... + 599998.

It is an arithmetic number, because the mean of its divisors is an integer number (3225985110).

Almost surely, 2^25126540123 is an apocalyptic number.

25126540123 is a deficient number, since it is larger than the sum of its proper divisors (681340757).

25126540123 is a wasteful number, since it uses less digits than its factorization.

25126540123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59117.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 25126540123 in words is "twenty-five billion, one hundred twenty-six million, five hundred forty thousand, one hundred twenty-three".