54506421 has 12 divisors (see below), whose sum is σ = 82875520. Its totient is φ = 34425000.

The previous prime is 54506371. The next prime is 54506429. The reversal of 54506421 is 12460545.

It is not a de Polignac number, because 54506421 - 2⁶ = 54506357 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 (54506429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159205 + ... + 159546.

Almost surely, 2^54506421 is an apocalyptic number.

It is an amenable number.

54506421 is a deficient number, since it is larger than the sum of its proper divisors (28369099).

54506421 is a wasteful number, since it uses less digits than its factorization.

54506421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318776 (or 318773 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 54506421 is about 7382.8464023031. The cubic root of 54506421 is about 379.1542153836.

Adding to 54506421 its reverse (12460545), we get a palindrome (66966966).

The spelling of 54506421 in words is "fifty-four million, five hundred six thousand, four hundred twenty-one".