63263641 has 4 divisors (see below), whose sum is σ = 72301312. Its totient is φ = 54225972.

The previous prime is 63263633. The next prime is 63263659. The reversal of 63263641 is 14636236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63263641 - 2³ = 63263633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63266641) 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, 4518825 + ... + 4518838.

It is an arithmetic number, because the mean of its divisors is an integer number (18075328).

Almost surely, 2^63263641 is an apocalyptic number.

It is an amenable number.

63263641 is a deficient number, since it is larger than the sum of its proper divisors (9037671).

63263641 is an equidigital number, since it uses as much as digits as its factorization.

63263641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037670.

The product of its digits is 15552, while the sum is 31.

The square root of 63263641 is about 7953.8444163813. The cubic root of 63263641 is about 398.4599973384.

Adding to 63263641 its reverse (14636236), we get a palindrome (77899877).

The spelling of 63263641 in words is "sixty-three million, two hundred sixty-three thousand, six hundred forty-one".