523450523332406 has 4 divisors (see below), whose sum is σ = 785175784998612. Its totient is φ = 261725261666202.

The previous prime is 523450523332381. The next prime is 523450523332421. The reversal of 523450523332406 is 604233325054325.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130862630833100 + ... + 130862630833103.

It is an arithmetic number, because the mean of its divisors is an integer number (196293946249653).

Almost surely, 2^{523450523332406} is an apocalyptic number.

523450523332406 is a deficient number, since it is larger than the sum of its proper divisors (261725261666206).

523450523332406 is a wasteful number, since it uses less digits than its factorization.

523450523332406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261725261666205.

The product of its (nonzero) digits is 7776000, while the sum is 47.

The spelling of 523450523332406 in words is "five hundred twenty-three trillion, four hundred fifty billion, five hundred twenty-three million, three hundred thirty-two thousand, four hundred six".