63555030 has 160 divisors (see below), whose sum is σ = 213269760. Its totient is φ = 13193280.

The previous prime is 63555029. The next prime is 63555047. The reversal of 63555030 is 3055536.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 63554985 and 63555003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 61861 + ... + 62879.

It is an arithmetic number, because the mean of its divisors is an integer number (1332936).

Almost surely, 2^63555030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63555030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106634880).

63555030 is an abundant number, since it is smaller than the sum of its proper divisors (149714730).

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

63555030 is a wasteful number, since it uses less digits than its factorization.

63555030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 63555030 is about 7972.1408667936. The cubic root of 63555030 is about 399.0708224105.

The spelling of 63555030 in words is "sixty-three million, five hundred fifty-five thousand, thirty".