5125278815 has 8 divisors (see below), whose sum is σ = 6150832848. Its totient is φ = 4099890880.

The previous prime is 5125278803. The next prime is 5125278817. The reversal of 5125278815 is 5188725215.

It is a happy number.

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

It is not a de Polignac number, because 5125278815 - 2⁸ = 5125278559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5125278817) 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, 41435 + ... + 109395.

It is an arithmetic number, because the mean of its divisors is an integer number (768854106).

Almost surely, 2^5125278815 is an apocalyptic number.

5125278815 is a deficient number, since it is larger than the sum of its proper divisors (1025554033).

5125278815 is a wasteful number, since it uses less digits than its factorization.

5125278815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83049.

The product of its digits is 224000, while the sum is 44.

The square root of 5125278815 is about 71591.0526183265. The cubic root of 5125278815 is about 1724.1398851428.

The spelling of 5125278815 in words is "five billion, one hundred twenty-five million, two hundred seventy-eight thousand, eight hundred fifteen".