538501499 has 2 divisors, whose sum is σ = 538501500. Its totient is φ = 538501498.

The previous prime is 538501451. The next prime is 538501501. The reversal of 538501499 is 994105835.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538501499 - 2²⁴ = 521724283 is a prime.

Together with 538501501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (538501099) 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, 269250749 + 269250750.

It is an arithmetic number, because the mean of its divisors is an integer number (269250750).

Almost surely, 2^538501499 is an apocalyptic number.

538501499 is a deficient number, since it is larger than the sum of its proper divisors (1).

538501499 is an equidigital number, since it uses as much as digits as its factorization.

538501499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 538501499 is about 23205.6350699566. The cubic root of 538501499 is about 813.5713357530.

The spelling of 538501499 in words is "five hundred thirty-eight million, five hundred one thousand, four hundred ninety-nine".