53773081 has 4 divisors (see below), whose sum is σ = 54051892. Its totient is φ = 53494272.

The previous prime is 53773073. The next prime is 53773121. The reversal of 53773081 is 18037735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18037735 = 5 ⋅3607547.

It can be written as a sum of positive squares in 2 ways, for example, as 5331481 + 48441600 = 2309^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 53773081 - 2³ = 53773073 is a prime.

It is a super-2 number, since 2×53773081² = 5783088480465122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53773001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139116 + ... + 139501.

It is an arithmetic number, because the mean of its divisors is an integer number (13512973).

Almost surely, 2^53773081 is an apocalyptic number.

It is an amenable number.

53773081 is a deficient number, since it is larger than the sum of its proper divisors (278811).

53773081 is a wasteful number, since it uses less digits than its factorization.

53773081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278810.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 53773081 is about 7333.0130914925. The cubic root of 53773081 is about 377.4461271308.

The spelling of 53773081 in words is "fifty-three million, seven hundred seventy-three thousand, eighty-one".