63561028 has 12 divisors (see below), whose sum is σ = 117774972. Its totient is φ = 29911040.

The previous prime is 63560993. The next prime is 63561037. The reversal of 63561028 is 82016536.

It can be written as a sum of positive squares in 2 ways, for example, as 40347904 + 23213124 = 6352^2 + 4818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467293 + ... + 467428.

It is an arithmetic number, because the mean of its divisors is an integer number (9814581).

Almost surely, 2^63561028 is an apocalyptic number.

63561028 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

63561028 is a deficient number, since it is larger than the sum of its proper divisors (54213944).

63561028 is a wasteful number, since it uses less digits than its factorization.

63561028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934742 (or 934740 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 63561028 is about 7972.5170429420. The cubic root of 63561028 is about 399.0833761061.

The spelling of 63561028 in words is "sixty-three million, five hundred sixty-one thousand, twenty-eight".