63345570 has 64 divisors (see below), whose sum is σ = 166561920. Its totient is φ = 15346688.

The previous prime is 63345523. The next prime is 63345577. The reversal of 63345570 is 7554336.

63345570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63345570² = 8025322477249800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63345577) 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 31 ways as a sum of consecutive naturals, for example, 12649 + ... + 16931.

It is an arithmetic number, because the mean of its divisors is an integer number (2602530).

Almost surely, 2^63345570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63345570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83280960).

63345570 is an abundant number, since it is smaller than the sum of its proper divisors (103216350).

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

63345570 is a wasteful number, since it uses less digits than its factorization.

63345570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 63345570 is about 7958.9930267591. The cubic root of 63345570 is about 398.6319304654.

It can be divided in two parts, 633 and 45570, that multiplied together give a triangular number (28845810 = T₇₅₉₅).

The spelling of 63345570 in words is "sixty-three million, three hundred forty-five thousand, five hundred seventy".