523417631 has 4 divisors (see below), whose sum is σ = 571001064. Its totient is φ = 475834200.

The previous prime is 523417627. The next prime is 523417667. The reversal of 523417631 is 136714325.

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

It is a cyclic number.

It is not a de Polignac number, because 523417631 - 2² = 523417627 is a prime.

It is a super-2 number, since 2×523417631² = 547932032883304322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523417691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23791700 + ... + 23791721.

It is an arithmetic number, because the mean of its divisors is an integer number (142750266).

Almost surely, 2^523417631 is an apocalyptic number.

523417631 is a deficient number, since it is larger than the sum of its proper divisors (47583433).

523417631 is a wasteful number, since it uses less digits than its factorization.

523417631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47583432.

The product of its digits is 15120, while the sum is 32.

The square root of 523417631 is about 22878.3222942593. The cubic root of 523417631 is about 805.9030186436.

The spelling of 523417631 in words is "five hundred twenty-three million, four hundred seventeen thousand, six hundred thirty-one".