505353240531 has 12 divisors (see below), whose sum is σ = 737181956160. Its totient is φ = 333566494800.

The previous prime is 505353240521. The next prime is 505353240551. The reversal of 505353240531 is 135042353505.

505353240531 is a `hidden beast` number, since 5 + 0 + 53 + 5 + 32 + 40 + 531 = 666.

It is not a de Polignac number, because 505353240531 - 2⁹ = 505353240019 is a prime.

It is a super-2 number, since 2×505353240531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505353240521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277971171 + ... + 277972988.

It is an arithmetic number, because the mean of its divisors is an integer number (61431829680).

Almost surely, 2^505353240531 is an apocalyptic number.

505353240531 is a deficient number, since it is larger than the sum of its proper divisors (231828715629).

505353240531 is a wasteful number, since it uses less digits than its factorization.

505353240531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555944266 (or 555944263 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 505353240531 in words is "five hundred five billion, three hundred fifty-three million, two hundred forty thousand, five hundred thirty-one".