556323137 has 4 divisors (see below), whose sum is σ = 569892036. Its totient is φ = 542754240.

The previous prime is 556323133. The next prime is 556323151. The reversal of 556323137 is 731323655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198697216 + 357625921 = 14096^2 + 18911^2 .

It is a cyclic number.

It is not a de Polignac number, because 556323137 - 2² = 556323133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556323097 and 556323106.

It is not an unprimeable number, because it can be changed into a prime (556323133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6784388 + ... + 6784469.

It is an arithmetic number, because the mean of its divisors is an integer number (142473009).

Almost surely, 2^556323137 is an apocalyptic number.

It is an amenable number.

556323137 is a deficient number, since it is larger than the sum of its proper divisors (13568899).

556323137 is a wasteful number, since it uses less digits than its factorization.

556323137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13568898.

The product of its digits is 56700, while the sum is 35.

The square root of 556323137 is about 23586.5032804780. The cubic root of 556323137 is about 822.4491209370.

The spelling of 556323137 in words is "five hundred fifty-six million, three hundred twenty-three thousand, one hundred thirty-seven".