54042621 has 8 divisors (see below), whose sum is σ = 73590144. Its totient is φ = 35261760.

The previous prime is 54042619. The next prime is 54042623. The reversal of 54042621 is 12624045.

It is an interprime number because it is at equal distance from previous prime (54042619) and next prime (54042623).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54042621 - 2¹ = 54042619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54042591 and 54042600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54042623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191500 + ... + 191781.

It is an arithmetic number, because the mean of its divisors is an integer number (9198768).

Almost surely, 2^54042621 is an apocalyptic number.

It is an amenable number.

54042621 is a deficient number, since it is larger than the sum of its proper divisors (19547523).

54042621 is a wasteful number, since it uses less digits than its factorization.

54042621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383331.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 54042621 is about 7351.3686480818. The cubic root of 54042621 is about 378.0757315859.

Adding to 54042621 its reverse (12624045), we get a palindrome (66666666).

The spelling of 54042621 in words is "fifty-four million, forty-two thousand, six hundred twenty-one".