622134450025 has 27 divisors (see below), whose sum is σ = 848012962629. Its totient is φ = 452429868000.

The previous prime is 622134450019. The next prime is 622134450121. The reversal of 622134450025 is 520054431226.

The square root of 622134450025 is 788755.

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

It can be written as a sum of positive squares in 4 ways, for example, as 318471734889 + 303662715136 = 564333^2 + 551056^2 .

It is a de Polignac number, because none of the positive numbers 2^k-622134450025 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 (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 43374355 + ... + 43388695.

Almost surely, 2^622134450025 is an apocalyptic number.

622134450025 is the 788755-th square number.

622134450025 is the 394378-th centered octagonal number.

It is an amenable number.

622134450025 is a deficient number, since it is larger than the sum of its proper divisors (225878512604).

622134450025 is an frugal number, since it uses more digits than its factorization.

622134450025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28714 (or 14357 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 622134450025 in words is "six hundred twenty-two billion, one hundred thirty-four million, four hundred fifty thousand, twenty-five".