552661641 has 72 divisors (see below), whose sum is σ = 980254080. Its totient is φ = 299143152.

The previous prime is 552661601. The next prime is 552661649. The reversal of 552661641 is 146166255.

552661641 is a `hidden beast` number, since 5 + 5 + 2 + 6 + 6 + 1 + 641 = 666.

It is not a de Polignac number, because 552661641 - 2⁷ = 552661513 is a prime.

Its product of digits (43200) is a multiple of the sum of its prime factors (192).

It is a junction number, because it is equal to n+sod(n) for n = 552661596 and 552661605.

It is not an unprimeable number, because it can be changed into a prime (552661649) 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 71 ways as a sum of consecutive naturals, for example, 5365596 + ... + 5365698.

It is an arithmetic number, because the mean of its divisors is an integer number (13614640).

Almost surely, 2^552661641 is an apocalyptic number.

It is an amenable number.

552661641 is a deficient number, since it is larger than the sum of its proper divisors (427592439).

552661641 is a wasteful number, since it uses less digits than its factorization.

552661641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 136 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 552661641 is about 23508.7566876685. The cubic root of 552661641 is about 820.6408043756.

The spelling of 552661641 in words is "five hundred fifty-two million, six hundred sixty-one thousand, six hundred forty-one".