63331620 has 48 divisors (see below), whose sum is σ = 193451328. Its totient is φ = 15352960.

The previous prime is 63331601. The next prime is 63331633. The reversal of 63331620 is 2613336.

63331620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 47319 + ... + 48638.

It is an arithmetic number, because the mean of its divisors is an integer number (4030236).

Almost surely, 2^63331620 is an apocalyptic number.

63331620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63331620 is an abundant number, since it is smaller than the sum of its proper divisors (130119708).

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

63331620 is a wasteful number, since it uses less digits than its factorization.

63331620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95980 (or 95978 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 63331620 is about 7958.1166113598. The cubic root of 63331620 is about 398.6026659949.

Adding to 63331620 its reverse (2613336), we get a palindrome (65944956).

It can be divided in two parts, 633316 and 20, that added together give a palindrome (633336).

The spelling of 63331620 in words is "sixty-three million, three hundred thirty-one thousand, six hundred twenty".