505235720423 has 8 divisors (see below), whose sum is σ = 577815202848. Its totient is φ = 432756975744.

The previous prime is 505235720417. The next prime is 505235720459. The reversal of 505235720423 is 324027532505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505235720423 - 2¹⁶ = 505235654887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505235720323) 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, 25173686 + ... + 25193747.

It is an arithmetic number, because the mean of its divisors is an integer number (72226900356).

Almost surely, 2^505235720423 is an apocalyptic number.

505235720423 is a deficient number, since it is larger than the sum of its proper divisors (72579482425).

505235720423 is a wasteful number, since it uses less digits than its factorization.

505235720423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50368873.

The product of its (nonzero) digits is 252000, while the sum is 38.

The spelling of 505235720423 in words is "five hundred five billion, two hundred thirty-five million, seven hundred twenty thousand, four hundred twenty-three".