6623212257 has 48 divisors (see below), whose sum is σ = 10351158480. Its totient is φ = 4065325056.

The previous prime is 6623212247. The next prime is 6623212289. The reversal of 6623212257 is 7522123266.

6623212257 is a `hidden beast` number, since 6 + 623 + 2 + 1 + 2 + 25 + 7 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 242238096 + 6380974161 = 15564^2 + 79881^2 .

It is not a de Polignac number, because 6623212257 - 2¹² = 6623208161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6623212207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3315583 + ... + 3317579.

It is an arithmetic number, because the mean of its divisors is an integer number (215649135).

Almost surely, 2^6623212257 is an apocalyptic number.

It is an amenable number.

6623212257 is a deficient number, since it is larger than the sum of its proper divisors (3727946223).

6623212257 is a wasteful number, since it uses less digits than its factorization.

6623212257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 2479 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 6623212257 is about 81383.1202215791. The cubic root of 6623212257 is about 1877.9739242127.

The spelling of 6623212257 in words is "six billion, six hundred twenty-three million, two hundred twelve thousand, two hundred fifty-seven".