63390545 has 16 divisors (see below), whose sum is σ = 78444288. Its totient is φ = 49150080.

The previous prime is 63390541. The next prime is 63390559. The reversal of 63390545 is 54509336.

63390545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63390545 - 2² = 63390541 is a prime.

It is a super-2 number, since 2×63390545² = 8036722390794050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63390541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23885 + ... + 26405.

It is an arithmetic number, because the mean of its divisors is an integer number (4902768).

Almost surely, 2^63390545 is an apocalyptic number.

It is an amenable number.

63390545 is a deficient number, since it is larger than the sum of its proper divisors (15053743).

63390545 is a wasteful number, since it uses less digits than its factorization.

63390545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 63390545 is about 7961.8179456704. The cubic root of 63390545 is about 398.7262502929.

The spelling of 63390545 in words is "sixty-three million, three hundred ninety thousand, five hundred forty-five".