504089581 has 2 divisors, whose sum is σ = 504089582. Its totient is φ = 504089580.

The previous prime is 504089561. The next prime is 504089587. The reversal of 504089581 is 185980405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281065225 + 223024356 = 16765^2 + 14934^2 .

It is a cyclic number.

It is not a de Polignac number, because 504089581 - 2⁵ = 504089549 is a prime.

It is a super-2 number, since 2×504089581² = 508212611345511122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504089587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252044790 + 252044791.

It is an arithmetic number, because the mean of its divisors is an integer number (252044791).

Almost surely, 2^504089581 is an apocalyptic number.

It is an amenable number.

504089581 is a deficient number, since it is larger than the sum of its proper divisors (1).

504089581 is an equidigital number, since it uses as much as digits as its factorization.

504089581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 504089581 is about 22451.9393594406. The cubic root of 504089581 is about 795.8585879824.

The spelling of 504089581 in words is "five hundred four million, eighty-nine thousand, five hundred eighty-one".