523508422 has 4 divisors (see below), whose sum is σ = 785262636. Its totient is φ = 261754210.

The previous prime is 523508411. The next prime is 523508423. The reversal of 523508422 is 224805325.

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

It is a super-2 number, since 2×523508422² = 548122135809860168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523508423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130877104 + ... + 130877107.

It is an arithmetic number, because the mean of its divisors is an integer number (196315659).

Almost surely, 2^523508422 is an apocalyptic number.

523508422 is a deficient number, since it is larger than the sum of its proper divisors (261754214).

523508422 is a wasteful number, since it uses less digits than its factorization.

523508422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261754213.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 523508422 is about 22880.3064227733. The cubic root of 523508422 is about 805.9496127376.

The spelling of 523508422 in words is "five hundred twenty-three million, five hundred eight thousand, four hundred twenty-two".