63261601 has 24 divisors (see below), whose sum is σ = 71876544. Its totient is φ = 55598400.

The previous prime is 63261571. The next prime is 63261613. The reversal of 63261601 is 10616236.

63261601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63261601 - 2¹⁵ = 63228833 is a prime.

It is a super-2 number, since 2×63261601² = 8004060322166402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63261631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418876 + ... + 419026.

It is an arithmetic number, because the mean of its divisors is an integer number (2994856).

Almost surely, 2^63261601 is an apocalyptic number.

It is an amenable number.

63261601 is a deficient number, since it is larger than the sum of its proper divisors (8614943).

63261601 is a wasteful number, since it uses less digits than its factorization.

63261601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 63261601 is about 7953.7161754742. The cubic root of 63261601 is about 398.4557143774.

Adding to 63261601 its reverse (10616236), we get a palindrome (73877837).

The spelling of 63261601 in words is "sixty-three million, two hundred sixty-one thousand, six hundred one".