622970811225 has 81 divisors (see below), whose sum is σ = 1298155689597. Its totient is φ = 284748770880.

The previous prime is 622970811163. The next prime is 622970811241. The reversal of 622970811225 is 522118079226.

The square root of 622970811225 is 789285.

It is a perfect power (a square), and thus also a powerful number.

622970811225 is a `hidden beast` number, since 62 + 297 + 0 + 81 + 1 + 225 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 89638563609 + 533332247616 = 299397^2 + 730296^2 .

It is not a de Polignac number, because 622970811225 - 2⁹ = 622970810713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 82871167 + ... + 82878683.

Almost surely, 2^622970811225 is an apocalyptic number.

622970811225 is the 789285-th square number.

622970811225 is the 394643-rd centered octagonal number.

It is an amenable number.

622970811225 is an abundant number, since it is smaller than the sum of its proper divisors (675184878372).

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

622970811225 is an frugal number, since it uses more digits than its factorization.

622970811225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15064 (or 7532 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 622970811225 in words is "six hundred twenty-two billion, nine hundred seventy million, eight hundred eleven thousand, two hundred twenty-five".