505243433254 has 16 divisors (see below), whose sum is σ = 884559932928. Its totient is φ = 211925816712.

The previous prime is 505243433243. The next prime is 505243433257. The reversal of 505243433254 is 452334342505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505243433257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383922924 + ... + 383924239.

It is an arithmetic number, because the mean of its divisors is an integer number (55284995808).

Almost surely, 2^505243433254 is an apocalyptic number.

505243433254 is a deficient number, since it is larger than the sum of its proper divisors (379316499674).

505243433254 is a wasteful number, since it uses less digits than its factorization.

505243433254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767847219.

The product of its (nonzero) digits is 864000, while the sum is 40.

Adding to 505243433254 its reverse (452334342505), we get a palindrome (957577775759).

The spelling of 505243433254 in words is "five hundred five billion, two hundred forty-three million, four hundred thirty-three thousand, two hundred fifty-four".