54421420 has 48 divisors (see below), whose sum is σ = 122865120. Its totient is φ = 20173824.

The previous prime is 54421397. The next prime is 54421481. The reversal of 54421420 is 2412445.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 54421391 and 54421400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21586 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (2559690).

Almost surely, 2^54421420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54421420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61432560).

54421420 is an abundant number, since it is smaller than the sum of its proper divisors (68443700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54421420 is a wasteful number, since it uses less digits than its factorization.

54421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2480 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 54421420 is about 7377.0875011755. The cubic root of 54421420 is about 378.9570199310.

Adding to 54421420 its reverse (2412445), we get a palindrome (56833865).

The spelling of 54421420 in words is "fifty-four million, four hundred twenty-one thousand, four hundred twenty".