53337381 has 16 divisors (see below), whose sum is σ = 75816000. Its totient is φ = 33237248.

The previous prime is 53337367. The next prime is 53337413. The reversal of 53337381 is 18373335.

It is a cyclic number.

It is not a de Polignac number, because 53337381 - 2¹⁹ = 52813093 is a prime.

It is a super-2 number, since 2×53337381² = 5689752423878322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53337301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4090 + ... + 11108.

It is an arithmetic number, because the mean of its divisors is an integer number (4738500).

Almost surely, 2^53337381 is an apocalyptic number.

53337381 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

53337381 is a deficient number, since it is larger than the sum of its proper divisors (22478619).

53337381 is a wasteful number, since it uses less digits than its factorization.

53337381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7188.

The product of its digits is 22680, while the sum is 33.

The square root of 53337381 is about 7303.2445529367. The cubic root of 53337381 is about 376.4239338119.

The spelling of 53337381 in words is "fifty-three million, three hundred thirty-seven thousand, three hundred eighty-one".