522090887 has 4 divisors (see below), whose sum is σ = 530649816. Its totient is φ = 513531960.

The previous prime is 522090853. The next prime is 522090901. The reversal of 522090887 is 788090225.

It is a happy number.

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 522090887 - 2⁸ = 522090631 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522090787) 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, 4279373 + ... + 4279494.

It is an arithmetic number, because the mean of its divisors is an integer number (132662454).

Almost surely, 2^522090887 is an apocalyptic number.

522090887 is a deficient number, since it is larger than the sum of its proper divisors (8558929).

522090887 is an equidigital number, since it uses as much as digits as its factorization.

522090887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558928.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 522090887 is about 22849.3082389818. The cubic root of 522090887 is about 805.2215158812.

The spelling of 522090887 in words is "five hundred twenty-two million, ninety thousand, eight hundred eighty-seven".