54819445 has 4 divisors (see below), whose sum is σ = 65783340. Its totient is φ = 43855552.

The previous prime is 54819431. The next prime is 54819469. The reversal of 54819445 is 54491845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54491845 = 5 ⋅10898369.

It can be written as a sum of positive squares in 2 ways, for example, as 41873841 + 12945604 = 6471^2 + 3598^2 .

It is a cyclic number.

It is not a de Polignac number, because 54819445 - 2¹¹ = 54817397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54819398 and 54819407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5481940 + ... + 5481949.

It is an arithmetic number, because the mean of its divisors is an integer number (16445835).

Almost surely, 2^54819445 is an apocalyptic number.

It is an amenable number.

54819445 is a deficient number, since it is larger than the sum of its proper divisors (10963895).

54819445 is a wasteful number, since it uses less digits than its factorization.

54819445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10963894.

The product of its digits is 115200, while the sum is 40.

The square root of 54819445 is about 7404.0154645976. The cubic root of 54819445 is about 379.8786431497.

The spelling of 54819445 in words is "fifty-four million, eight hundred nineteen thousand, four hundred forty-five".