505023004501 has 2 divisors, whose sum is σ = 505023004502. Its totient is φ = 505023004500.

The previous prime is 505023004487. The next prime is 505023004531. The reversal of 505023004501 is 105400320505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502702270225 + 2320734276 = 709015^2 + 48174^2 .

It is a cyclic number.

It is not a de Polignac number, because 505023004501 - 2³⁵ = 470663266133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505023004531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252511502250 + 252511502251.

It is an arithmetic number, because the mean of its divisors is an integer number (252511502251).

Almost surely, 2^505023004501 is an apocalyptic number.

It is an amenable number.

505023004501 is a deficient number, since it is larger than the sum of its proper divisors (1).

505023004501 is an equidigital number, since it uses as much as digits as its factorization.

505023004501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 505023004501 in words is "five hundred five billion, twenty-three million, four thousand, five hundred one".