505501004531 has 2 divisors, whose sum is σ = 505501004532. Its totient is φ = 505501004530.

The previous prime is 505501004461. The next prime is 505501004557. The reversal of 505501004531 is 135400105505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505501004531 - 2¹⁰ = 505501003507 is a prime.

It is a super-2 number, since 2×505501004531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505501004494 and 505501004503.

It is not a weakly prime, because it can be changed into another prime (505501034531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252750502265 + 252750502266.

It is an arithmetic number, because the mean of its divisors is an integer number (252750502266).

Almost surely, 2^505501004531 is an apocalyptic number.

505501004531 is a deficient number, since it is larger than the sum of its proper divisors (1).

505501004531 is an equidigital number, since it uses as much as digits as its factorization.

505501004531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 505501004531 in words is "five hundred five billion, five hundred one million, four thousand, five hundred thirty-one".