523212526 has 4 divisors (see below), whose sum is σ = 784818792. Its totient is φ = 261606262.

The previous prime is 523212517. The next prime is 523212583. The reversal of 523212526 is 625212325.

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

It is a junction number, because it is equal to n+sod(n) for n = 523212494 and 523212503.

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, 130803130 + ... + 130803133.

It is an arithmetic number, because the mean of its divisors is an integer number (196204698).

Almost surely, 2^523212526 is an apocalyptic number.

523212526 is a deficient number, since it is larger than the sum of its proper divisors (261606266).

523212526 is a wasteful number, since it uses less digits than its factorization.

523212526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261606265.

The product of its digits is 7200, while the sum is 28.

The square root of 523212526 is about 22873.8393366745. The cubic root of 523212526 is about 805.7977385739.

The spelling of 523212526 in words is "five hundred twenty-three million, two hundred twelve thousand, five hundred twenty-six".