623216552 has 32 divisors (see below), whose sum is σ = 1336281600. Its totient is φ = 266929344.

The previous prime is 623216551. The next prime is 623216557. The reversal of 623216552 is 255612326.

It is not an unprimeable number, because it can be changed into a prime (623216551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150218 + ... + 154310.

It is an arithmetic number, because the mean of its divisors is an integer number (41758800).

Almost surely, 2^623216552 is an apocalyptic number.

It is an amenable number.

623216552 is an abundant number, since it is smaller than the sum of its proper divisors (713065048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623216552 is a wasteful number, since it uses less digits than its factorization.

623216552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6825 (or 6821 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 623216552 is about 24964.3055581364. The cubic root of 623216552 is about 854.1739577290.

Adding to 623216552 its reverse (255612326), we get a palindrome (878828878).

The spelling of 623216552 in words is "six hundred twenty-three million, two hundred sixteen thousand, five hundred fifty-two".