523642603 has 16 divisors (see below), whose sum is σ = 602922240. Its totient is φ = 449776800.

The previous prime is 523642543. The next prime is 523642643. The reversal of 523642603 is 306246325.

It is a happy number.

It is not a de Polignac number, because 523642603 - 2¹⁷ = 523511531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523642643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79818 + ... + 86128.

It is an arithmetic number, because the mean of its divisors is an integer number (37682640).

Almost surely, 2^523642603 is an apocalyptic number.

523642603 is a deficient number, since it is larger than the sum of its proper divisors (79279637).

523642603 is a wasteful number, since it uses less digits than its factorization.

523642603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 523642603 is about 22883.2384727337. The cubic root of 523642603 is about 806.0184647893.

Adding to 523642603 its reverse (306246325), we get a palindrome (829888928).

The spelling of 523642603 in words is "five hundred twenty-three million, six hundred forty-two thousand, six hundred three".