622856825 has 6 divisors (see below), whose sum is σ = 772342494. Its totient is φ = 498285440.

The previous prime is 622856783. The next prime is 622856891. The reversal of 622856825 is 528658226.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 95511529 + 527345296 = 9773^2 + 22964^2 .

It is not a de Polignac number, because 622856825 - 2¹⁸ = 622594681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12457112 + ... + 12457161.

It is an arithmetic number, because the mean of its divisors is an integer number (128723749).

Almost surely, 2^622856825 is an apocalyptic number.

It is an amenable number.

622856825 is a deficient number, since it is larger than the sum of its proper divisors (149485669).

622856825 is a wasteful number, since it uses less digits than its factorization.

622856825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24914283 (or 24914278 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 622856825 is about 24957.0996912702. The cubic root of 622856825 is about 854.0095801019.

The spelling of 622856825 in words is "six hundred twenty-two million, eight hundred fifty-six thousand, eight hundred twenty-five".