623505222052 has 12 divisors (see below), whose sum is σ = 1091166128640. Its totient is φ = 311743471016.

The previous prime is 623505222017. The next prime is 623505222083. The reversal of 623505222052 is 250222505326.

It is a super-2 number, since 2×623505222052² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623505221999 and 623505222017.

It is an unprimeable number.

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, 2130352 + ... + 2405287.

It is an arithmetic number, because the mean of its divisors is an integer number (90930510720).

Almost surely, 2^623505222052 is an apocalyptic number.

It is an amenable number.

623505222052 is a deficient number, since it is larger than the sum of its proper divisors (467660906588).

623505222052 is a wasteful number, since it uses less digits than its factorization.

623505222052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570010 (or 4570008 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 623505222052 its reverse (250222505326), we get a palindrome (873727727378).

The spelling of 623505222052 in words is "six hundred twenty-three billion, five hundred five million, two hundred twenty-two thousand, fifty-two".