5155111442 has 12 divisors (see below), whose sum is σ = 8373243690. Its totient is φ = 2379282048.

The previous prime is 5155111439. The next prime is 5155111447. The reversal of 5155111442 is 2441115515.

It can be written as a sum of positive squares in 3 ways, for example, as 2477152441 + 2677959001 = 49771^2 + 51749^2 .

It is not an unprimeable number, because it can be changed into a prime (5155111447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7625567 + ... + 7626242.

Almost surely, 2^5155111442 is an apocalyptic number.

5155111442 is a deficient number, since it is larger than the sum of its proper divisors (3218132248).

5155111442 is a wasteful number, since it uses less digits than its factorization.

5155111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15251837 (or 15251824 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 5155111442 is about 71799.1047437223. The cubic root of 5155111442 is about 1727.4786398772.

Adding to 5155111442 its reverse (2441115515), we get a palindrome (7596226957).

The spelling of 5155111442 in words is "five billion, one hundred fifty-five million, one hundred eleven thousand, four hundred forty-two".