53312811 has 4 divisors (see below), whose sum is σ = 71083752. Its totient is φ = 35541872.

The previous prime is 53312807. The next prime is 53312821. The reversal of 53312811 is 11821335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53312811 - 2² = 53312807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53312801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8885466 + ... + 8885471.

It is an arithmetic number, because the mean of its divisors is an integer number (17770938).

Almost surely, 2^53312811 is an apocalyptic number.

53312811 is a deficient number, since it is larger than the sum of its proper divisors (17770941).

53312811 is a wasteful number, since it uses less digits than its factorization.

53312811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17770940.

The product of its digits is 720, while the sum is 24.

The square root of 53312811 is about 7301.5622300984. The cubic root of 53312811 is about 376.3661247207.

The spelling of 53312811 in words is "fifty-three million, three hundred twelve thousand, eight hundred eleven".