556507541 has 2 divisors, whose sum is σ = 556507542. Its totient is φ = 556507540.

The previous prime is 556507513. The next prime is 556507573. The reversal of 556507541 is 145705655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551263441 + 5244100 = 23479^2 + 2290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556507541 is a prime.

It is a super-3 number, since 3×556507541³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 556507495 and 556507504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556507741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278253770 + 278253771.

It is an arithmetic number, because the mean of its divisors is an integer number (278253771).

Almost surely, 2^556507541 is an apocalyptic number.

It is an amenable number.

556507541 is a deficient number, since it is larger than the sum of its proper divisors (1).

556507541 is an equidigital number, since it uses as much as digits as its factorization.

556507541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 556507541 is about 23590.4120565962. The cubic root of 556507541 is about 822.5399830897.

The spelling of 556507541 in words is "five hundred fifty-six million, five hundred seven thousand, five hundred forty-one".