505601541423 has 24 divisors (see below), whose sum is σ = 799734798720. Its totient is φ = 305260046160.

The previous prime is 505601541293. The next prime is 505601541437. The reversal of 505601541423 is 324145106505.

505601541423 is a `hidden beast` number, since 5 + 0 + 5 + 601 + 5 + 4 + 1 + 42 + 3 = 666.

It is not a de Polignac number, because 505601541423 - 2¹⁰ = 505601540399 is a prime.

It is a super-3 number, since 3×505601541423³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505601541223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9683253 + ... + 9735326.

It is an arithmetic number, because the mean of its divisors is an integer number (33322283280).

Almost surely, 2^505601541423 is an apocalyptic number.

505601541423 is a deficient number, since it is larger than the sum of its proper divisors (294133257297).

505601541423 is a wasteful number, since it uses less digits than its factorization.

505601541423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19418859 (or 19418856 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 505601541423 its reverse (324145106505), we get a palindrome (829746647928).

The spelling of 505601541423 in words is "five hundred five billion, six hundred one million, five hundred forty-one thousand, four hundred twenty-three".