552128725 has 6 divisors (see below), whose sum is σ = 684639650. Its totient is φ = 441702960.

The previous prime is 552128659. The next prime is 552128741. The reversal of 552128725 is 527821255.

It can be written as a sum of positive squares in 3 ways, for example, as 154405476 + 397723249 = 12426^2 + 19943^2 .

It is not a de Polignac number, because 552128725 - 2¹³ = 552120533 is a prime.

It is a super-2 number, since 2×552128725² = 609692257940251250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 11042550 + ... + 11042599.

Almost surely, 2^552128725 is an apocalyptic number.

It is an amenable number.

552128725 is a deficient number, since it is larger than the sum of its proper divisors (132510925).

552128725 is a wasteful number, since it uses less digits than its factorization.

552128725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22085159 (or 22085154 counting only the distinct ones).

The product of its digits is 56000, while the sum is 37.

The square root of 552128725 is about 23497.4195391749. The cubic root of 552128725 is about 820.3769459693.

The spelling of 552128725 in words is "five hundred fifty-two million, one hundred twenty-eight thousand, seven hundred twenty-five".