523452639 has 16 divisors (see below), whose sum is σ = 745297920. Its totient is φ = 326064480.

The previous prime is 523452619. The next prime is 523452647. The reversal of 523452639 is 936254325.

It is not a de Polignac number, because 523452639 - 2⁷ = 523452511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523452597 and 523452606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523452619) 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 15 ways as a sum of consecutive naturals, for example, 94347 + ... + 99740.

It is an arithmetic number, because the mean of its divisors is an integer number (46581120).

Almost surely, 2^523452639 is an apocalyptic number.

523452639 is a deficient number, since it is larger than the sum of its proper divisors (221845281).

523452639 is a wasteful number, since it uses less digits than its factorization.

523452639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194150.

The product of its digits is 194400, while the sum is 39.

The square root of 523452639 is about 22879.0873725330. The cubic root of 523452639 is about 805.9209854463.

The spelling of 523452639 in words is "five hundred twenty-three million, four hundred fifty-two thousand, six hundred thirty-nine".