518226885 has 48 divisors (see below), whose sum is σ = 985944960. Its totient is φ = 249717120.

The previous prime is 518226883. The next prime is 518226931. The reversal of 518226885 is 588622815.

It is not a de Polignac number, because 518226885 - 2¹ = 518226883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 518226885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518226883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79531 + ... + 85799.

It is an arithmetic number, because the mean of its divisors is an integer number (20540520).

Almost surely, 2^518226885 is an apocalyptic number.

518226885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

518226885 is a deficient number, since it is larger than the sum of its proper divisors (467718075).

518226885 is a wasteful number, since it uses less digits than its factorization.

518226885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458 (or 6455 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 518226885 is about 22764.5971851030. The cubic root of 518226885 is about 803.2301097070.

The spelling of 518226885 in words is "five hundred eighteen million, two hundred twenty-six thousand, eight hundred eighty-five".