5125144999 has 16 divisors (see below), whose sum is σ = 5564618752. Its totient is φ = 4692295008.

The previous prime is 5125144991. The next prime is 5125145009. The reversal of 5125144999 is 9994415215.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5125144999 - 2³ = 5125144991 is a prime.

It is a super-2 number, since 2×5125144999² = 52534222521549420002, which 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 (5125144991) 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 15 ways as a sum of consecutive naturals, for example, 817294 + ... + 823540.

It is an arithmetic number, because the mean of its divisors is an integer number (347788672).

Almost surely, 2^5125144999 is an apocalyptic number.

5125144999 is a deficient number, since it is larger than the sum of its proper divisors (439473753).

5125144999 is a wasteful number, since it uses less digits than its factorization.

5125144999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766.

The product of its digits is 583200, while the sum is 49.

The square root of 5125144999 is about 71590.1180261634. The cubic root of 5125144999 is about 1724.1248798121.

The spelling of 5125144999 in words is "five billion, one hundred twenty-five million, one hundred forty-four thousand, nine hundred ninety-nine".