523531004 has 6 divisors (see below), whose sum is σ = 916179264. Its totient is φ = 261765500.

The previous prime is 523531003. The next prime is 523531027. The reversal of 523531004 is 400135325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523531003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65441372 + ... + 65441379.

It is an arithmetic number, because the mean of its divisors is an integer number (152696544).

Almost surely, 2^523531004 is an apocalyptic number.

It is an amenable number.

523531004 is a deficient number, since it is larger than the sum of its proper divisors (392648260).

523531004 is a wasteful number, since it uses less digits than its factorization.

523531004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130882755 (or 130882753 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 523531004 is about 22880.7998986049. The cubic root of 523531004 is about 805.9612010213.

Adding to 523531004 its reverse (400135325), we get a palindrome (923666329).

The spelling of 523531004 in words is "five hundred twenty-three million, five hundred thirty-one thousand, four".