63406253 has 4 divisors (see below), whose sum is σ = 65451648. Its totient is φ = 61360860.

The previous prime is 63406247. The next prime is 63406261. The reversal of 63406253 is 35260436.

63406253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63406253 - 2⁸ = 63405997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63406283) 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 3 ways as a sum of consecutive naturals, for example, 1022651 + ... + 1022712.

It is an arithmetic number, because the mean of its divisors is an integer number (16362912).

Almost surely, 2^63406253 is an apocalyptic number.

It is an amenable number.

63406253 is a deficient number, since it is larger than the sum of its proper divisors (2045395).

63406253 is a wasteful number, since it uses less digits than its factorization.

63406253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045394.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 63406253 is about 7962.8043426923. The cubic root of 63406253 is about 398.7591819900.

Adding to 63406253 its reverse (35260436), we get a palindrome (98666689).

The spelling of 63406253 in words is "sixty-three million, four hundred six thousand, two hundred fifty-three".