5155231444 has 48 divisors (see below), whose sum is σ = 9947972160. Its totient is φ = 2318135040.

The previous prime is 5155231441. The next prime is 5155231463. The reversal of 5155231444 is 4441325515.

It is a super-2 number, since 2×5155231444² = 53152822482412650272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155231441) 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, 1912962 + ... + 1915654.

It is an arithmetic number, because the mean of its divisors is an integer number (207249420).

Almost surely, 2^5155231444 is an apocalyptic number.

It is an amenable number.

5155231444 is a deficient number, since it is larger than the sum of its proper divisors (4792740716).

5155231444 is a wasteful number, since it uses less digits than its factorization.

5155231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3158 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 5155231444 is about 71799.9404178026. The cubic root of 5155231444 is about 1727.4920440028.

Adding to 5155231444 its reverse (4441325515), we get a palindrome (9596556959).

The spelling of 5155231444 in words is "five billion, one hundred fifty-five million, two hundred thirty-one thousand, four hundred forty-four".