523664542 has 8 divisors (see below), whose sum is σ = 812583000. Its totient is φ = 252803544.

The previous prime is 523664507. The next prime is 523664573. The reversal of 523664542 is 245466325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4514292 + ... + 4514407.

It is an arithmetic number, because the mean of its divisors is an integer number (101572875).

Almost surely, 2^523664542 is an apocalyptic number.

523664542 is a deficient number, since it is larger than the sum of its proper divisors (288918458).

523664542 is a wasteful number, since it uses less digits than its factorization.

523664542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028730.

The product of its digits is 172800, while the sum is 37.

The square root of 523664542 is about 22883.7178360510. The cubic root of 523664542 is about 806.0297211895.

The spelling of 523664542 in words is "five hundred twenty-three million, six hundred sixty-four thousand, five hundred forty-two".