505540045499 has 2 divisors, whose sum is σ = 505540045500. Its totient is φ = 505540045498.

The previous prime is 505540045487. The next prime is 505540045553. The reversal of 505540045499 is 994540045505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505540045499 - 2⁸ = 505540045243 is a prime.

It is not a weakly prime, because it can be changed into another prime (505540045999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252770022749 + 252770022750.

It is an arithmetic number, because the mean of its divisors is an integer number (252770022750).

Almost surely, 2^505540045499 is an apocalyptic number.

505540045499 is a deficient number, since it is larger than the sum of its proper divisors (1).

505540045499 is an equidigital number, since it uses as much as digits as its factorization.

505540045499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 505540045499 in words is "five hundred five billion, five hundred forty million, forty-five thousand, four hundred ninety-nine".