522652638 has 8 divisors (see below), whose sum is σ = 1045305288. Its totient is φ = 174217544.

The previous prime is 522652633. The next prime is 522652673. The reversal of 522652638 is 836256225.

It is a sphenic number, since it is the product of 3 distinct primes.

522652638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 522652596 and 522652605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522652633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43554381 + ... + 43554392.

It is an arithmetic number, because the mean of its divisors is an integer number (130663161).

Almost surely, 2^522652638 is an apocalyptic number.

522652638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522652638 is a wasteful number, since it uses less digits than its factorization.

522652638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87108778.

The product of its digits is 172800, while the sum is 39.

The square root of 522652638 is about 22861.5974507470. The cubic root of 522652638 is about 805.5102088197.

The spelling of 522652638 in words is "five hundred twenty-two million, six hundred fifty-two thousand, six hundred thirty-eight".