523255623 has 8 divisors (see below), whose sum is σ = 761099136. Its totient is φ = 317124600.

The previous prime is 523255583. The next prime is 523255633. The reversal of 523255623 is 326552325.

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

It is not a de Polignac number, because 523255623 - 2⁹ = 523255111 is a prime.

It is a super-2 number, since 2×523255623² = 547592894002236258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 15856231 = 523255623 / (5 + 2 + 3 + 2 + 5 + 5 + 6 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523255633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7928083 + ... + 7928148.

It is an arithmetic number, because the mean of its divisors is an integer number (95137392).

Almost surely, 2^523255623 is an apocalyptic number.

523255623 is a deficient number, since it is larger than the sum of its proper divisors (237843513).

523255623 is a wasteful number, since it uses less digits than its factorization.

523255623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15856245.

The product of its digits is 54000, while the sum is 33.

The square root of 523255623 is about 22874.7813760044. The cubic root of 523255623 is about 805.8198624783.

The spelling of 523255623 in words is "five hundred twenty-three million, two hundred fifty-five thousand, six hundred twenty-three".