63145550 has 48 divisors (see below), whose sum is σ = 133168560. Its totient is φ = 22083840.

The previous prime is 63145549. The next prime is 63145567. The reversal of 63145550 is 5554136.

63145550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9794 + ... + 14906.

It is an arithmetic number, because the mean of its divisors is an integer number (2774345).

Almost surely, 2^63145550 is an apocalyptic number.

63145550 is an abundant number, since it is smaller than the sum of its proper divisors (70023010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63145550 is a wasteful number, since it uses less digits than its factorization.

63145550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157 (or 5152 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 63145550 is about 7946.4174317739. The cubic root of 63145550 is about 398.2119146203.

Adding to 63145550 its reverse (5554136), we get a palindrome (68699686).

The spelling of 63145550 in words is "sixty-three million, one hundred forty-five thousand, five hundred fifty".