523541623 has 4 divisors (see below), whose sum is σ = 571136328. Its totient is φ = 475946920.

The previous prime is 523541597. The next prime is 523541651. The reversal of 523541623 is 326145325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 523541623 - 2⁵ = 523541591 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 (523541023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23797336 + ... + 23797357.

It is an arithmetic number, because the mean of its divisors is an integer number (142784082).

Almost surely, 2^523541623 is an apocalyptic number.

523541623 is a deficient number, since it is larger than the sum of its proper divisors (47594705).

523541623 is a wasteful number, since it uses less digits than its factorization.

523541623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47594704.

The product of its digits is 21600, while the sum is 31.

The square root of 523541623 is about 22881.0319478821. The cubic root of 523541623 is about 805.9666502014.

Adding to 523541623 its reverse (326145325), we get a palindrome (849686948).

The spelling of 523541623 in words is "five hundred twenty-three million, five hundred forty-one thousand, six hundred twenty-three".