699422225 has 6 divisors (see below), whose sum is σ = 867283590. Its totient is φ = 559537760.

The previous prime is 699422209. The next prime is 699422237. The reversal of 699422225 is 522224996.

It can be written as a sum of positive squares in 3 ways, for example, as 824464 + 698597761 = 908^2 + 26431^2 .

It is not a de Polignac number, because 699422225 - 2⁴ = 699422209 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13988420 + ... + 13988469.

It is an arithmetic number, because the mean of its divisors is an integer number (144547265).

Almost surely, 2^699422225 is an apocalyptic number.

It is an amenable number.

699422225 is a deficient number, since it is larger than the sum of its proper divisors (167861365).

699422225 is a wasteful number, since it uses less digits than its factorization.

699422225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27976899 (or 27976894 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 699422225 is about 26446.5919354460. The cubic root of 699422225 is about 887.6596446264.

The spelling of 699422225 in words is "six hundred ninety-nine million, four hundred twenty-two thousand, two hundred twenty-five".