501222785 has 16 divisors (see below), whose sum is σ = 717278976. Its totient is φ = 328751808.

The previous prime is 501222769. The next prime is 501222797. The reversal of 501222785 is 587222105.

It is a happy number.

It is not a de Polignac number, because 501222785 - 2⁴ = 501222769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310514 + ... + 312123.

It is an arithmetic number, because the mean of its divisors is an integer number (44829936).

Almost surely, 2^501222785 is an apocalyptic number.

It is an amenable number.

501222785 is a deficient number, since it is larger than the sum of its proper divisors (216056191).

501222785 is a wasteful number, since it uses less digits than its factorization.

501222785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622672.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 501222785 is about 22388.0053823470. The cubic root of 501222785 is about 794.3470159897.

The spelling of 501222785 in words is "five hundred one million, two hundred twenty-two thousand, seven hundred eighty-five".