52057161 has 32 divisors (see below), whose sum is σ = 84125440. Its totient is φ = 32017680.

The previous prime is 52057157. The next prime is 52057171. The reversal of 52057161 is 16175025.

It is not a de Polignac number, because 52057161 - 2² = 52057157 is a prime.

It is a super-2 number, since 2×52057161² = 5419896022759842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52057151) 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 31 ways as a sum of consecutive naturals, for example, 27516 + ... + 29346.

It is an arithmetic number, because the mean of its divisors is an integer number (2628920).

Almost surely, 2^52057161 is an apocalyptic number.

It is an amenable number.

52057161 is a deficient number, since it is larger than the sum of its proper divisors (32068279).

52057161 is an equidigital number, since it uses as much as digits as its factorization.

52057161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 52057161 is about 7215.0648645733. The cubic root of 52057161 is about 373.3878310288.

The spelling of 52057161 in words is "fifty-two million, fifty-seven thousand, one hundred sixty-one".