54012421 has 8 divisors (see below), whose sum is σ = 56970080. Its totient is φ = 51066288.

The previous prime is 54012397. The next prime is 54012433. The reversal of 54012421 is 12421045.

54012421 is a nontrivial binomial coefficient, being equal to C(10394, 2).

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

It is a cyclic number.

It is not a de Polignac number, because 54012421 - 2¹³ = 54004229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54012461) 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, 7795 + ... + 12991.

It is an arithmetic number, because the mean of its divisors is an integer number (7121260).

Almost surely, 2^54012421 is an apocalyptic number.

54012421 is the 10393-rd triangular number and also the 5197-th hexagonal number.

54012421 is the 3465-th centered nonagonal number.

It is an amenable number.

54012421 is a deficient number, since it is larger than the sum of its proper divisors (2957659).

54012421 is a wasteful number, since it uses less digits than its factorization.

54012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 54012421 is about 7349.3143217582. The cubic root of 54012421 is about 378.0052932641.

Adding to 54012421 its reverse (12421045), we get a palindrome (66433466).

The spelling of 54012421 in words is "fifty-four million, twelve thousand, four hundred twenty-one".