63621053 has 4 divisors (see below), whose sum is σ = 65172828. Its totient is φ = 62069280.

The previous prime is 63621049. The next prime is 63621071. The reversal of 63621053 is 35012636.

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 22108804 + 41512249 = 4702^2 + 6443^2 .

It is a cyclic number.

It is not a de Polignac number, because 63621053 - 2² = 63621049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63621073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775826 + ... + 775907.

It is an arithmetic number, because the mean of its divisors is an integer number (16293207).

Almost surely, 2^63621053 is an apocalyptic number.

It is an amenable number.

63621053 is a deficient number, since it is larger than the sum of its proper divisors (1551775).

63621053 is a wasteful number, since it uses less digits than its factorization.

63621053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551774.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 63621053 is about 7976.2806495258. The cubic root of 63621053 is about 399.2089637687.

Adding to 63621053 its reverse (35012636), we get a palindrome (98633689).

The spelling of 63621053 in words is "sixty-three million, six hundred twenty-one thousand, fifty-three".