53508811 has 4 divisors (see below), whose sum is σ = 54415800. Its totient is φ = 52601824.

The previous prime is 53508803. The next prime is 53508859. The reversal of 53508811 is 11880535.

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 53508811 - 2³ = 53508803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53508311) 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, 453406 + ... + 453523.

It is an arithmetic number, because the mean of its divisors is an integer number (13603950).

Almost surely, 2^53508811 is an apocalyptic number.

53508811 is a deficient number, since it is larger than the sum of its proper divisors (906989).

53508811 is an equidigital number, since it uses as much as digits as its factorization.

53508811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906988.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 53508811 is about 7314.9717019275. The cubic root of 53508811 is about 376.8267866327.

It can be divided in two parts, 5350 and 8811, that added together give a square (14161 = 119²).

The spelling of 53508811 in words is "fifty-three million, five hundred eight thousand, eight hundred eleven".