5621212063 has 4 divisors (see below), whose sum is σ = 5621425920. Its totient is φ = 5620998208.

The previous prime is 5621212049. The next prime is 5621212081. The reversal of 5621212063 is 3602121265.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5621212063 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 (5621212033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60895 + ... + 122272.

It is an arithmetic number, because the mean of its divisors is an integer number (1405356480).

Almost surely, 2^5621212063 is an apocalyptic number.

5621212063 is a deficient number, since it is larger than the sum of its proper divisors (213857).

5621212063 is a wasteful number, since it uses less digits than its factorization.

5621212063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213856.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5621212063 is about 74974.7428338370. The cubic root of 5621212063 is about 1778.0473540750.

The spelling of 5621212063 in words is "five billion, six hundred twenty-one million, two hundred twelve thousand, sixty-three".