5155812 has 30 divisors (see below), whose sum is σ = 13479158. Its totient is φ = 1718496.

The previous prime is 5155789. The next prime is 5155817. The reversal of 5155812 is 2185515.

It can be written as a sum of positive squares in only one way, i.e., 4901796 + 254016 = 2214^2 + 504^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7633 + ... + 8280.

Almost surely, 2^5155812 is an apocalyptic number.

It is an amenable number.

5155812 is an abundant number, since it is smaller than the sum of its proper divisors (8323346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5155812 is a wasteful number, since it uses less digits than its factorization.

5155812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15929 (or 15918 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 5155812 is about 2270.6413190991. The cubic root of 5155812 is about 172.7556888697.

The spelling of 5155812 in words is "five million, one hundred fifty-five thousand, eight hundred twelve".