5155815 has 16 divisors (see below), whose sum is σ = 9427968. Its totient is φ = 2356896.

The previous prime is 5155789. The next prime is 5155817. The reversal of 5155815 is 5185515.

It is not a de Polignac number, because 5155815 - 2¹⁹ = 4631527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24447 + ... + 24656.

It is an arithmetic number, because the mean of its divisors is an integer number (589248).

Almost surely, 2^5155815 is an apocalyptic number.

5155815 is a deficient number, since it is larger than the sum of its proper divisors (4272153).

5155815 is a wasteful number, since it uses less digits than its factorization.

5155815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49118.

The product of its digits is 5000, while the sum is 30.

The square root of 5155815 is about 2270.6419797053. The cubic root of 5155815 is about 172.7557223767.

The spelling of 5155815 in words is "five million, one hundred fifty-five thousand, eight hundred fifteen".