54312421 has 4 divisors (see below), whose sum is σ = 55000000. Its totient is φ = 53624844.

The previous prime is 54312383. The next prime is 54312449. The reversal of 54312421 is 12421345.

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 54312421 - 2²¹ = 52215269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54312392 and 54312401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54312481) 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, 343671 + ... + 343828.

It is an arithmetic number, because the mean of its divisors is an integer number (13750000).

Almost surely, 2^54312421 is an apocalyptic number.

It is an amenable number.

54312421 is a deficient number, since it is larger than the sum of its proper divisors (687579).

54312421 is an equidigital number, since it uses as much as digits as its factorization.

54312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687578.

The product of its digits is 960, while the sum is 22.

The square root of 54312421 is about 7369.6961267070. The cubic root of 54312421 is about 378.7038503534.

Adding to 54312421 its reverse (12421345), we get a palindrome (66733766).

The spelling of 54312421 in words is "fifty-four million, three hundred twelve thousand, four hundred twenty-one".