552555727566 has 32 divisors (see below), whose sum is σ = 1122451305120. Its totient is φ = 181305183744.

The previous prime is 552555727531. The next prime is 552555727567. The reversal of 552555727566 is 665727555255.

It is a super-2 number, since 2×552555727566² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552555727567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016295 + ... + 1462178.

It is an arithmetic number, because the mean of its divisors is an integer number (35076603285).

Almost surely, 2^552555727566 is an apocalyptic number.

552555727566 is an abundant number, since it is smaller than the sum of its proper divisors (569895577554).

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

552555727566 is a wasteful number, since it uses less digits than its factorization.

552555727566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479060.

The product of its digits is 110250000, while the sum is 60.

The spelling of 552555727566 in words is "five hundred fifty-two billion, five hundred fifty-five million, seven hundred twenty-seven thousand, five hundred sixty-six".