552315021 has 16 divisors (see below), whose sum is σ = 757237248. Its totient is φ = 357825600.

The previous prime is 552315019. The next prime is 552315053. The reversal of 552315021 is 120513255.

It is a happy number.

It is not a de Polignac number, because 552315021 - 2¹ = 552315019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 552314982 and 552315000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552315011) 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, 107491 + ... + 112511.

It is an arithmetic number, because the mean of its divisors is an integer number (47327328).

Almost surely, 2^552315021 is an apocalyptic number.

It is an amenable number.

552315021 is a deficient number, since it is larger than the sum of its proper divisors (204922227).

552315021 is a wasteful number, since it uses less digits than its factorization.

552315021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 552315021 is about 23501.3833848138. The cubic root of 552315021 is about 820.4692045016.

Adding to 552315021 its reverse (120513255), we get a palindrome (672828276).

The spelling of 552315021 in words is "five hundred fifty-two million, three hundred fifteen thousand, twenty-one".