5631055818 has 16 divisors (see below), whose sum is σ = 11397800736. Its totient is φ = 1854403760.

The previous prime is 5631055813. The next prime is 5631055849. The reversal of 5631055818 is 8185501365.

It is a self number, because there is not a number n which added to its sum of digits gives 5631055818.

It is not an unprimeable number, because it can be changed into a prime (5631055813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5653173 + ... + 5654168.

It is an arithmetic number, because the mean of its divisors is an integer number (712362546).

Almost surely, 2^5631055818 is an apocalyptic number.

5631055818 is an abundant number, since it is smaller than the sum of its proper divisors (5766744918).

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

5631055818 is a wasteful number, since it uses less digits than its factorization.

5631055818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11307429.

The product of its (nonzero) digits is 144000, while the sum is 42.

The square root of 5631055818 is about 75040.3612597914. The cubic root of 5631055818 is about 1779.0846425632.

The spelling of 5631055818 in words is "five billion, six hundred thirty-one million, fifty-five thousand, eight hundred eighteen".