63550 has 24 divisors (see below), whose sum is σ = 124992. Its totient is φ = 24000.

The previous prime is 63541. The next prime is 63559. The reversal of 63550 is 5536.

It is an interprime number because it is at equal distance from previous prime (63541) and next prime (63559).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63559) by changing a digit.

63550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (5208).

2⁶³⁵⁵⁰ is an apocalyptic number.

63550 is a deficient number, since it is larger than the sum of its proper divisors (61442).

63550 is a wasteful number, since it uses less digits than its factorization.

63550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 63550 is about 252.0912533191. The cubic root of 63550 is about 39.9060294111.

Adding to 63550 its product of nonzero digits (450), we get a cube (64000 = 40³).

The spelling of 63550 in words is "sixty-three thousand, five hundred fifty".