555631641 has 6 divisors (see below), whose sum is σ = 802579050. Its totient is φ = 370421088.

The previous prime is 555631607. The next prime is 555631669. The reversal of 555631641 is 146136555.

555631641 is a `hidden beast` number, since 5 + 5 + 5 + 6 + 3 + 1 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 512071641 + 43560000 = 22629^2 + 6600^2 .

It is not a de Polignac number, because 555631641 - 2¹⁰ = 555630617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555631596 and 555631605.

It is not an unprimeable number, because it can be changed into a prime (555631691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30868416 + ... + 30868433.

It is an arithmetic number, because the mean of its divisors is an integer number (133763175).

Almost surely, 2^555631641 is an apocalyptic number.

It is an amenable number.

555631641 is a deficient number, since it is larger than the sum of its proper divisors (246947409).

555631641 is a wasteful number, since it uses less digits than its factorization.

555631641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61736855 (or 61736852 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 555631641 is about 23571.8400003054. The cubic root of 555631641 is about 822.1082182987.

The spelling of 555631641 in words is "five hundred fifty-five million, six hundred thirty-one thousand, six hundred forty-one".