648922286025 has 72 divisors (see below), whose sum is σ = 1251885212760. Its totient is φ = 319421905920.

The previous prime is 648922286021. The next prime is 648922286053. The reversal of 648922286025 is 520682229846.

It is a happy number.

648922286025 is a `hidden beast` number, since 6 + 4 + 8 + 9 + 2 + 2 + 28 + 602 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 595440635904 + 53481650121 = 771648^2 + 231261^2 .

It is not a de Polignac number, because 648922286025 - 2² = 648922286021 is a prime.

It is a super-2 number, since 2×648922286025² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (648922286021) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 27474421 + ... + 27498029.

Almost surely, 2^648922286025 is an apocalyptic number.

648922286025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

648922286025 is a deficient number, since it is larger than the sum of its proper divisors (602962926735).

648922286025 is a wasteful number, since it uses less digits than its factorization.

648922286025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33035 (or 33027 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 648922286025 in words is "six hundred forty-eight billion, nine hundred twenty-two million, two hundred eighty-six thousand, twenty-five".