8422503644025 has 243 divisors, whose sum is σ = 16941336877101. Its totient is φ = 3998565941760.

The previous prime is 8422503643993. The next prime is 8422503644039. The reversal of 8422503644025 is 5204463052248.

It is a happy number.

The square root of 8422503644025 is 2902155.

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

8422503644025 is a `hidden beast` number, since 8 + 4 + 22 + 503 + 64 + 40 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 197010811881 + 8225492832144 = 443859^2 + 2868012^2 .

It is not a de Polignac number, because 8422503644025 - 2⁵ = 8422503643993 is a prime.

It is a super-2 number, since 2×8422503644025² (a number of 27 digits) contains 22 as substring.

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 (23) of ones.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 14060940676 + ... + 14060941274.

Almost surely, 2^{8422503644025} is an apocalyptic number.

8422503644025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8422503644025 is the 2902155-th square number.

8422503644025 is the 1451078-th centered octagonal number.

It is an amenable number.

8422503644025 is an abundant number, since it is smaller than the sum of its proper divisors (8518833233076).

8422503644025 is a wasteful number, since it uses less digits than its factorization.

8422503644025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 8422503644025 in words is "eight trillion, four hundred twenty-two billion, five hundred three million, six hundred forty-four thousand, twenty-five".