552530121 has 32 divisors (see below), whose sum is σ = 870737280. Its totient is φ = 309067200.

The previous prime is 552530113. The next prime is 552530129. The reversal of 552530121 is 121035255.

It is a happy number.

552530121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (552530113) and next prime (552530129).

It is not a de Polignac number, because 552530121 - 2³ = 552530113 is a prime.

It is a super-2 number, since 2×552530121² = 610579069224549282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 552530091 and 552530100.

It is not an unprimeable number, because it can be changed into a prime (552530129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68691 + ... + 76311.

It is an arithmetic number, because the mean of its divisors is an integer number (27210540).

Almost surely, 2^552530121 is an apocalyptic number.

It is an amenable number.

552530121 is a deficient number, since it is larger than the sum of its proper divisors (318207159).

552530121 is a wasteful number, since it uses less digits than its factorization.

552530121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674 (or 7648 counting only the distinct ones).

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

The square root of 552530121 is about 23505.9592656841. The cubic root of 552530121 is about 820.5757017080.

Adding to 552530121 its reverse (121035255), we get a palindrome (673565376).

The spelling of 552530121 in words is "five hundred fifty-two million, five hundred thirty thousand, one hundred twenty-one".