552421323 has 16 divisors (see below), whose sum is σ = 818848800. Its totient is φ = 368079840.

The previous prime is 552421297. The next prime is 552421327. The reversal of 552421323 is 323124255.

It is a happy number.

552421323 is a `hidden beast` number, since 5 + 524 + 2 + 132 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-552421323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (552421327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57913 + ... + 66773.

It is an arithmetic number, because the mean of its divisors is an integer number (51178050).

Almost surely, 2^552421323 is an apocalyptic number.

552421323 is a deficient number, since it is larger than the sum of its proper divisors (266427477).

552421323 is a wasteful number, since it uses less digits than its factorization.

552421323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11179 (or 11173 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 552421323 is about 23503.6448875488. The cubic root of 552421323 is about 820.5218386682.

Adding to 552421323 its reverse (323124255), we get a palindrome (875545578).

It can be divided in two parts, 55242 and 1323, that added together give a palindrome (56565).

The spelling of 552421323 in words is "five hundred fifty-two million, four hundred twenty-one thousand, three hundred twenty-three".