54133631 has 4 divisors (see below), whose sum is σ = 54212664. Its totient is φ = 54054600.

The previous prime is 54133567. The next prime is 54133669. The reversal of 54133631 is 13633145.

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 54133631 - 2⁶ = 54133567 is a prime.

It is a super-2 number, since 2×54133631² = 5860900010488322, 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 54133631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54133231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38480 + ... + 39861.

It is an arithmetic number, because the mean of its divisors is an integer number (13553166).

Almost surely, 2^54133631 is an apocalyptic number.

54133631 is a deficient number, since it is larger than the sum of its proper divisors (79033).

54133631 is an equidigital number, since it uses as much as digits as its factorization.

54133631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79032.

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

The square root of 54133631 is about 7357.5560480366. The cubic root of 54133631 is about 378.2878442638.

Adding to 54133631 its reverse (13633145), we get a palindrome (67766776).

The spelling of 54133631 in words is "fifty-four million, one hundred thirty-three thousand, six hundred thirty-one".