555650649 has 12 divisors (see below), whose sum is σ = 844849200. Its totient is φ = 350937144.

The previous prime is 555650639. The next prime is 555650663. The reversal of 555650649 is 946056555.

555650649 is a `hidden beast` number, since 5 + 556 + 50 + 6 + 49 = 666.

It is not a de Polignac number, because 555650649 - 2⁵ = 555650617 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (555650639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1624539 + ... + 1624880.

It is an arithmetic number, because the mean of its divisors is an integer number (70404100).

Almost surely, 2^555650649 is an apocalyptic number.

It is an amenable number.

555650649 is a deficient number, since it is larger than the sum of its proper divisors (289198551).

555650649 is a wasteful number, since it uses less digits than its factorization.

555650649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249444 (or 3249441 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 555650649 is about 23572.2431898197. The cubic root of 555650649 is about 822.1175928878.

It can be divided in two parts, 5556506 and 49, that added together give a palindrome (5556555).

The spelling of 555650649 in words is "five hundred fifty-five million, six hundred fifty thousand, six hundred forty-nine".