63323261 has 4 divisors (see below), whose sum is σ = 63349500. Its totient is φ = 63297024.

The previous prime is 63323251. The next prime is 63323341. The reversal of 63323261 is 16232336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 755161 + 62568100 = 869^2 + 7910^2 .

It is a cyclic number.

It is not a de Polignac number, because 63323261 - 2¹⁴ = 63306877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63323261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63323251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9086 + ... + 14463.

It is an arithmetic number, because the mean of its divisors is an integer number (15837375).

Almost surely, 2^63323261 is an apocalyptic number.

It is an amenable number.

63323261 is a deficient number, since it is larger than the sum of its proper divisors (26239).

63323261 is a wasteful number, since it uses less digits than its factorization.

63323261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26238.

The product of its digits is 3888, while the sum is 26.

The square root of 63323261 is about 7957.5914069522. The cubic root of 63323261 is about 398.5851283295.

Adding to 63323261 its reverse (16232336), we get a palindrome (79555597).

The spelling of 63323261 in words is "sixty-three million, three hundred twenty-three thousand, two hundred sixty-one".