63655361 has 24 divisors (see below), whose sum is σ = 85543776. Its totient is φ = 46677120.

The previous prime is 63655313. The next prime is 63655363. The reversal of 63655361 is 16355636.

It is not a de Polignac number, because 63655361 - 2⁶ = 63655297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63655363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5690 + ... + 12636.

It is an arithmetic number, because the mean of its divisors is an integer number (3564324).

Almost surely, 2^63655361 is an apocalyptic number.

It is an amenable number.

63655361 is a deficient number, since it is larger than the sum of its proper divisors (21888415).

63655361 is a wasteful number, since it uses less digits than its factorization.

63655361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989 (or 6982 counting only the distinct ones).

The product of its digits is 48600, while the sum is 35.

The square root of 63655361 is about 7978.4309861025. The cubic root of 63655361 is about 399.2807094113.

The spelling of 63655361 in words is "sixty-three million, six hundred fifty-five thousand, three hundred sixty-one".