505061563431 has 16 divisors (see below), whose sum is σ = 708879421440. Its totient is φ = 318976761600.

The previous prime is 505061563423. The next prime is 505061563441. The reversal of 505061563431 is 134365160505.

It is not a de Polignac number, because 505061563431 - 2³ = 505061563423 is a prime.

It is a super-2 number, since 2×505061563431² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505061563431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505061563411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142391 + ... + 2366423.

It is an arithmetic number, because the mean of its divisors is an integer number (44304963840).

Almost surely, 2^505061563431 is an apocalyptic number.

505061563431 is a deficient number, since it is larger than the sum of its proper divisors (203817858009).

505061563431 is a wasteful number, since it uses less digits than its factorization.

505061563431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263606.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 505061563431 in words is "five hundred five billion, sixty-one million, five hundred sixty-three thousand, four hundred thirty-one".