2516138235825 has 24 divisors (see below), whose sum is σ = 4160547547200. Its totient is φ = 1341768672960.

The previous prime is 2516138235797. The next prime is 2516138235827. The reversal of 2516138235825 is 5285328316152.

2516138235825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2516138235825 - 2²¹ = 2516136138673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2516138235827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1555405 + ... + 2729754.

It is an arithmetic number, because the mean of its divisors is an integer number (173356147800).

Almost surely, 2^{2516138235825} is an apocalyptic number.

2516138235825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2516138235825 is a deficient number, since it is larger than the sum of its proper divisors (1644409311375).

2516138235825 is a wasteful number, since it uses less digits than its factorization.

2516138235825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293001 (or 4292996 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The spelling of 2516138235825 in words is "two trillion, five hundred sixteen billion, one hundred thirty-eight million, two hundred thirty-five thousand, eight hundred twenty-five".