523403542 has 16 divisors (see below), whose sum is σ = 816888240. Its totient is φ = 251212192.

The previous prime is 523403537. The next prime is 523403549. The reversal of 523403542 is 245304325.

It is a self number, because there is not a number n which added to its sum of digits gives 523403542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523403549) 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 7 ways as a sum of consecutive naturals, for example, 16048 + ... + 36115.

It is an arithmetic number, because the mean of its divisors is an integer number (51055515).

Almost surely, 2^523403542 is an apocalyptic number.

523403542 is a deficient number, since it is larger than the sum of its proper divisors (293484698).

523403542 is a wasteful number, since it uses less digits than its factorization.

523403542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52367.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 523403542 is about 22878.0143806232. The cubic root of 523403542 is about 805.8957876622.

Adding to 523403542 its reverse (245304325), we get a palindrome (768707867).

The spelling of 523403542 in words is "five hundred twenty-three million, four hundred three thousand, five hundred forty-two".