523567254 has 48 divisors (see below), whose sum is σ = 1221407856. Its totient is φ = 149184000.

The previous prime is 523567229. The next prime is 523567259. The reversal of 523567254 is 452765325.

It is a happy number.

It is a super-2 number, since 2×523567254² = 548245338922201032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523567259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115674 + ... + 120114.

It is an arithmetic number, because the mean of its divisors is an integer number (25445997).

Almost surely, 2^523567254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523567254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610703928).

523567254 is an abundant number, since it is smaller than the sum of its proper divisors (697840602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523567254 is a wasteful number, since it uses less digits than its factorization.

523567254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861 (or 4854 counting only the distinct ones).

The product of its digits is 252000, while the sum is 39.

The square root of 523567254 is about 22881.5920337725. The cubic root of 523567254 is about 805.9798025426.

The spelling of 523567254 in words is "five hundred twenty-three million, five hundred sixty-seven thousand, two hundred fifty-four".