552121524 has 18 divisors (see below), whose sum is σ = 1395640610. Its totient is φ = 184040496.

The previous prime is 552121523. The next prime is 552121543. The reversal of 552121524 is 425121255.

It can be written as a sum of positive squares in only one way, i.e., 486996624 + 65124900 = 22068^2 + 8070^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552121523) 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 5 ways as a sum of consecutive naturals, for example, 7668319 + ... + 7668390.

Almost surely, 2^552121524 is an apocalyptic number.

It is an amenable number.

552121524 is an abundant number, since it is smaller than the sum of its proper divisors (843519086).

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

552121524 is a wasteful number, since it uses less digits than its factorization.

552121524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15336719 (or 15336714 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 552121524 is about 23497.2663090837. The cubic root of 552121524 is about 820.3733794338.

Adding to 552121524 its reverse (425121255), we get a palindrome (977242779).

The spelling of 552121524 in words is "five hundred fifty-two million, one hundred twenty-one thousand, five hundred twenty-four".