54440545 has 8 divisors (see below), whose sum is σ = 69171624. Its totient is φ = 40990464.

The previous prime is 54440543. The next prime is 54440549. The reversal of 54440545 is 54504445.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22268961 + 32171584 = 4719^2 + 5672^2 .

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 54440545 - 2¹ = 54440543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54440543) 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, 320154 + ... + 320323.

It is an arithmetic number, because the mean of its divisors is an integer number (8646453).

Almost surely, 2^54440545 is an apocalyptic number.

It is an amenable number.

54440545 is a deficient number, since it is larger than the sum of its proper divisors (14731079).

54440545 is a wasteful number, since it uses less digits than its factorization.

54440545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640499.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 54440545 is about 7378.3836305793. The cubic root of 54440545 is about 379.0014062785.

The spelling of 54440545 in words is "fifty-four million, four hundred forty thousand, five hundred forty-five".