63550631 has 2 divisors, whose sum is σ = 63550632. Its totient is φ = 63550630.

The previous prime is 63550583. The next prime is 63550699. The reversal of 63550631 is 13605536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63550631 - 2⁶ = 63550567 is a prime.

It is a super-2 number, since 2×63550631² = 8077365400996322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63550594 and 63550603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63553631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31775315 + 31775316.

It is an arithmetic number, because the mean of its divisors is an integer number (31775316).

Almost surely, 2^63550631 is an apocalyptic number.

63550631 is a deficient number, since it is larger than the sum of its proper divisors (1).

63550631 is an equidigital number, since it uses as much as digits as its factorization.

63550631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 63550631 is about 7971.8649637334. The cubic root of 63550631 is about 399.0616148883.

The spelling of 63550631 in words is "sixty-three million, five hundred fifty thousand, six hundred thirty-one".