539049557 has 2 divisors, whose sum is σ = 539049558. Its totient is φ = 539049556.

The previous prime is 539049499. The next prime is 539049569. The reversal of 539049557 is 755940935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538657681 + 391876 = 23209^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 539049557 - 2⁶ = 539049493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539049457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269524778 + 269524779.

It is an arithmetic number, because the mean of its divisors is an integer number (269524779).

Almost surely, 2^539049557 is an apocalyptic number.

It is an amenable number.

539049557 is a deficient number, since it is larger than the sum of its proper divisors (1).

539049557 is an equidigital number, since it uses as much as digits as its factorization.

539049557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 850500, while the sum is 47.

The square root of 539049557 is about 23217.4407935069. The cubic root of 539049557 is about 813.8472452907.

The spelling of 539049557 in words is "five hundred thirty-nine million, forty-nine thousand, five hundred fifty-seven".