53337631 has 4 divisors (see below), whose sum is σ = 53405352. Its totient is φ = 53269912.

The previous prime is 53337569. The next prime is 53337637. The reversal of 53337631 is 13673335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53337631 - 2¹³ = 53329439 is a prime.

It is a super-2 number, since 2×53337631² = 5689805761384322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53337593 and 53337602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53337637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32665 + ... + 34258.

It is an arithmetic number, because the mean of its divisors is an integer number (13351338).

Almost surely, 2^53337631 is an apocalyptic number.

53337631 is a deficient number, since it is larger than the sum of its proper divisors (67721).

53337631 is an equidigital number, since it uses as much as digits as its factorization.

53337631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67720.

The product of its digits is 17010, while the sum is 31.

The square root of 53337631 is about 7303.2616685971. The cubic root of 53337631 is about 376.4245219288.

The spelling of 53337631 in words is "fifty-three million, three hundred thirty-seven thousand, six hundred thirty-one".