53161229 has 6 divisors (see below), whose sum is σ = 58433550. Its totient is φ = 48328280.

The previous prime is 53161219. The next prime is 53161231. The reversal of 53161229 is 92216135.

53161229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28111204 + 25050025 = 5302^2 + 5005^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53161229 is a prime.

It is a super-2 number, since 2×53161229² = 5652232537580882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53161219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219554 + ... + 219795.

It is an arithmetic number, because the mean of its divisors is an integer number (9738925).

Almost surely, 2^53161229 is an apocalyptic number.

It is an amenable number.

53161229 is a deficient number, since it is larger than the sum of its proper divisors (5272321).

53161229 is a wasteful number, since it uses less digits than its factorization.

53161229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439371 (or 439360 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 53161229 is about 7291.1747338821. The cubic root of 53161229 is about 376.0090843022.

The spelling of 53161229 in words is "fifty-three million, one hundred sixty-one thousand, two hundred twenty-nine".