53061812 has 18 divisors (see below), whose sum is σ = 93693474. Its totient is φ = 26294320.

The previous prime is 53061809. The next prime is 53061823. The reversal of 53061812 is 21816035.

It can be written as a sum of positive squares in only one way, i.e., 33223696 + 19838116 = 5764^2 + 4454^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68258 + ... + 69030.

It is an arithmetic number, because the mean of its divisors is an integer number (5205193).

Almost surely, 2^53061812 is an apocalyptic number.

It is an amenable number.

53061812 is a deficient number, since it is larger than the sum of its proper divisors (40631662).

53061812 is a wasteful number, since it uses less digits than its factorization.

53061812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 53061812 is about 7284.3539178159. The cubic root of 53061812 is about 375.7745460706.

Adding to 53061812 its reverse (21816035), we get a palindrome (74877847).

The spelling of 53061812 in words is "fifty-three million, sixty-one thousand, eight hundred twelve".