212295170025 has 63 divisors (see below), whose sum is σ = 394804139989. Its totient is φ = 113190916320.

The previous prime is 212295170023. The next prime is 212295170081. The reversal of 212295170025 is 520071592212.

The square root of 212295170025 is 460755.

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 32695510761 + 179599659264 = 180819^2 + 423792^2 .

It is not a de Polignac number, because 212295170025 - 2¹ = 212295170023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212295170023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 62200219 + ... + 62203631.

Almost surely, 2^212295170025 is an apocalyptic number.

212295170025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212295170025 is the 460755-th square number.

212295170025 is the 230378-th centered octagonal number.

It is an amenable number.

212295170025 is a deficient number, since it is larger than the sum of its proper divisors (182508969964).

212295170025 is an frugal number, since it uses more digits than its factorization.

212295170025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

Multiplying 212295170025 by its sum of digits (36), we get a square (7642626120900 = 2764530²).

The spelling of 212295170025 in words is "two hundred twelve billion, two hundred ninety-five million, one hundred seventy thousand, twenty-five".