556051393 has 2 divisors, whose sum is σ = 556051394. Its totient is φ = 556051392.

The previous prime is 556051373. The next prime is 556051399. The reversal of 556051393 is 393150655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522213904 + 33837489 = 22852^2 + 5817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556051393 is a prime.

It is not a weakly prime, because it can be changed into another prime (556051399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278025696 + 278025697.

It is an arithmetic number, because the mean of its divisors is an integer number (278025697).

Almost surely, 2^556051393 is an apocalyptic number.

It is an amenable number.

556051393 is a deficient number, since it is larger than the sum of its proper divisors (1).

556051393 is an equidigital number, since it uses as much as digits as its factorization.

556051393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60750, while the sum is 37.

The square root of 556051393 is about 23580.7419942630. The cubic root of 556051393 is about 822.3151867784.

It can be divided in two parts, 5560 and 51393, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 556051393 in words is "five hundred fifty-six million, fifty-one thousand, three hundred ninety-three".