54360421 has 4 divisors (see below), whose sum is σ = 54375244. Its totient is φ = 54345600.

The previous prime is 54360409. The next prime is 54360433. The reversal of 54360421 is 12406345.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (54360409) and next prime (54360433).

It can be written as a sum of positive squares in 2 ways, for example, as 37957921 + 16402500 = 6161^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 54360421 - 2⁵ = 54360389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54360521) 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, 2581 + ... + 10741.

It is an arithmetic number, because the mean of its divisors is an integer number (13593811).

Almost surely, 2^54360421 is an apocalyptic number.

It is an amenable number.

54360421 is a deficient number, since it is larger than the sum of its proper divisors (14823).

54360421 is an equidigital number, since it uses as much as digits as its factorization.

54360421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14822.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 54360421 is about 7372.9519868232. The cubic root of 54360421 is about 378.8153805956.

Adding to 54360421 its reverse (12406345), we get a palindrome (66766766).

The spelling of 54360421 in words is "fifty-four million, three hundred sixty thousand, four hundred twenty-one".