63275813 has 4 divisors (see below), whose sum is σ = 63441408. Its totient is φ = 63110220.

The previous prime is 63275803. The next prime is 63275827. The reversal of 63275813 is 31857236.

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 63275813 - 2¹⁰ = 63274789 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 (63275803) 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, 82223 + ... + 82988.

It is an arithmetic number, because the mean of its divisors is an integer number (15860352).

Almost surely, 2^63275813 is an apocalyptic number.

It is an amenable number.

63275813 is a deficient number, since it is larger than the sum of its proper divisors (165595).

63275813 is a wasteful number, since it uses less digits than its factorization.

63275813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165594.

The product of its digits is 30240, while the sum is 35.

The square root of 63275813 is about 7954.6095441574. The cubic root of 63275813 is about 398.4855504260.

The spelling of 63275813 in words is "sixty-three million, two hundred seventy-five thousand, eight hundred thirteen".