63561275 has 12 divisors (see below), whose sum is σ = 80739624. Its totient is φ = 49608000.

The previous prime is 63561271. The next prime is 63561299. The reversal of 63561275 is 57216536.

It is not a de Polignac number, because 63561275 - 2² = 63561271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63561271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29981 + ... + 32030.

It is an arithmetic number, because the mean of its divisors is an integer number (6728302).

Almost surely, 2^63561275 is an apocalyptic number.

63561275 is a deficient number, since it is larger than the sum of its proper divisors (17178349).

63561275 is a wasteful number, since it uses less digits than its factorization.

63561275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62062 (or 62057 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 63561275 is about 7972.5325336432. The cubic root of 63561275 is about 399.0838930553.

It can be divided in two parts, 63561 and 275, that added together give a palindrome (63836).

The spelling of 63561275 in words is "sixty-three million, five hundred sixty-one thousand, two hundred seventy-five".