552222021 has 16 divisors (see below), whose sum is σ = 793356480. Its totient is φ = 339648000.

The previous prime is 552222007. The next prime is 552222029. The reversal of 552222021 is 120222255.

It is not a de Polignac number, because 552222021 - 2¹¹ = 552219973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552222029) 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, 136021 + ... + 140021.

It is an arithmetic number, because the mean of its divisors is an integer number (49584780).

Almost surely, 2^552222021 is an apocalyptic number.

It is an amenable number.

552222021 is a deficient number, since it is larger than the sum of its proper divisors (241134459).

552222021 is a wasteful number, since it uses less digits than its factorization.

552222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 552222021 is about 23499.4046945875. The cubic root of 552222021 is about 820.4231511225.

Adding to 552222021 its reverse (120222255), we get a palindrome (672444276).

The spelling of 552222021 in words is "five hundred fifty-two million, two hundred twenty-two thousand, twenty-one".