556550145 has 12 divisors (see below), whose sum is σ = 964686996. Its totient is φ = 296826720.

The previous prime is 556550143. The next prime is 556550149. The reversal of 556550145 is 541055655.

556550145 is a `hidden beast` number, since 5 + 565 + 50 + 1 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 231252849 + 325297296 = 15207^2 + 18036^2 .

It is not a de Polignac number, because 556550145 - 2¹ = 556550143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556550143) 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, 6183846 + ... + 6183935.

It is an arithmetic number, because the mean of its divisors is an integer number (80390583).

Almost surely, 2^556550145 is an apocalyptic number.

It is an amenable number.

556550145 is a deficient number, since it is larger than the sum of its proper divisors (408136851).

556550145 is a wasteful number, since it uses less digits than its factorization.

556550145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12367792 (or 12367789 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 556550145 is about 23591.3150332914. The cubic root of 556550145 is about 822.5609726820.

The spelling of 556550145 in words is "five hundred fifty-six million, five hundred fifty thousand, one hundred forty-five".