54421445 has 16 divisors (see below), whose sum is σ = 71968512. Its totient is φ = 39251520.

The previous prime is 54421397. The next prime is 54421481. The reversal of 54421445 is 54412445.

It is not a de Polignac number, because 54421445 - 2¹⁶ = 54355909 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6941 + ... + 12530.

It is an arithmetic number, because the mean of its divisors is an integer number (4498032).

Almost surely, 2^54421445 is an apocalyptic number.

It is an amenable number.

54421445 is a deficient number, since it is larger than the sum of its proper divisors (17547067).

54421445 is a wasteful number, since it uses less digits than its factorization.

54421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19532.

The product of its digits is 12800, while the sum is 29.

The square root of 54421445 is about 7377.0891956110. The cubic root of 54421445 is about 378.9570779591.

The spelling of 54421445 in words is "fifty-four million, four hundred twenty-one thousand, four hundred forty-five".