54512545 has 8 divisors (see below), whose sum is σ = 66090024. Its totient is φ = 43160064.

The previous prime is 54512543. The next prime is 54512551. The reversal of 54512545 is 54521545.

It can be written as a sum of positive squares in 4 ways, for example, as 17497489 + 37015056 = 4183^2 + 6084^2 .

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 54512545 - 2¹ = 54512543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54512543) 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, 55714 + ... + 56683.

It is an arithmetic number, because the mean of its divisors is an integer number (8261253).

Almost surely, 2^54512545 is an apocalyptic number.

It is an amenable number.

54512545 is a deficient number, since it is larger than the sum of its proper divisors (11577479).

54512545 is a wasteful number, since it uses less digits than its factorization.

54512545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112499.

The product of its digits is 20000, while the sum is 31.

The square root of 54512545 is about 7383.2611358396. The cubic root of 54512545 is about 379.1684146493.

The spelling of 54512545 in words is "fifty-four million, five hundred twelve thousand, five hundred forty-five".