552721869 has 24 divisors (see below), whose sum is σ = 913045952. Its totient is φ = 315627840.

The previous prime is 552721843. The next prime is 552721877. The reversal of 552721869 is 968127255.

It is not a de Polignac number, because 552721869 - 2¹³ = 552713677 is a prime.

It is a super-2 number, since 2×552721869² = 611002928941706322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552721889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184554 + ... + 187524.

Almost surely, 2^552721869 is an apocalyptic number.

It is an amenable number.

552721869 is a deficient number, since it is larger than the sum of its proper divisors (360324083).

552721869 is a wasteful number, since it uses less digits than its factorization.

552721869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937 (or 5934 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 552721869 is about 23510.0376222583. The cubic root of 552721869 is about 820.6706139103.

The spelling of 552721869 in words is "five hundred fifty-two million, seven hundred twenty-one thousand, eight hundred sixty-nine".