53033381 has 4 divisors (see below), whose sum is σ = 53824992. Its totient is φ = 52241772.

The previous prime is 53033359. The next prime is 53033399. The reversal of 53033381 is 18333035.

53033381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53033381 - 2⁶ = 53033317 is a prime.

It is a super-2 number, since 2×53033381² = 5625079000582322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53033381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53033311) 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 3 ways as a sum of consecutive naturals, for example, 395705 + ... + 395838.

It is an arithmetic number, because the mean of its divisors is an integer number (13456248).

Almost surely, 2^53033381 is an apocalyptic number.

It is an amenable number.

53033381 is a deficient number, since it is larger than the sum of its proper divisors (791611).

53033381 is an equidigital number, since it uses as much as digits as its factorization.

53033381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791610.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 53033381 is about 7282.4021448970. The cubic root of 53033381 is about 375.7074196105.

The spelling of 53033381 in words is "fifty-three million, thirty-three thousand, three hundred eighty-one".