552521688 has 32 divisors (see below), whose sum is σ = 1428937200. Its totient is φ = 177822848.

The previous prime is 552521647. The next prime is 552521689. The reversal of 552521688 is 886125255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552521689) 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 7 ways as a sum of consecutive naturals, for example, 396231 + ... + 397622.

Almost surely, 2^552521688 is an apocalyptic number.

552521688 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

552521688 is an abundant number, since it is smaller than the sum of its proper divisors (876415512).

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

552521688 is a wasteful number, since it uses less digits than its factorization.

552521688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793891 (or 793887 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 552521688 is about 23505.7798849560. The cubic root of 552521688 is about 820.5715270034.

The spelling of 552521688 in words is "five hundred fifty-two million, five hundred twenty-one thousand, six hundred eighty-eight".