53081810 has 16 divisors (see below), whose sum is σ = 95665752. Its totient is φ = 21206400.

The previous prime is 53081807. The next prime is 53081843. The reversal of 53081810 is 1818035.

It can be written as a sum of positive squares in 4 ways, for example, as 52867441 + 214369 = 7271^2 + 463^2 .

It is a super-2 number, since 2×53081810² = 5635357105752200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53081810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6590 + ... + 12230.

Almost surely, 2^53081810 is an apocalyptic number.

53081810 is a deficient number, since it is larger than the sum of its proper divisors (42583942).

53081810 is a wasteful number, since it uses less digits than its factorization.

53081810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 53081810 is about 7285.7264565725. The cubic root of 53081810 is about 375.8217475967.

Adding to 53081810 its reverse (1818035), we get a palindrome (54899845).

The spelling of 53081810 in words is "fifty-three million, eighty-one thousand, eight hundred ten".