52661426425 has 12 divisors (see below), whose sum is σ = 65376748780. Its totient is φ = 42079734720.

The previous prime is 52661426423. The next prime is 52661426429. The reversal of 52661426425 is 52462416625.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 15924420864 + 36737005561 = 126192^2 + 191669^2 .

It is not a de Polignac number, because 52661426425 - 2¹ = 52661426423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52661426423) 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 11 ways as a sum of consecutive naturals, for example, 1213410 + ... + 1256059.

Almost surely, 2^52661426425 is an apocalyptic number.

It is an amenable number.

52661426425 is a deficient number, since it is larger than the sum of its proper divisors (12715322355).

52661426425 is a wasteful number, since it uses less digits than its factorization.

52661426425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470332 (or 2470327 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

The spelling of 52661426425 in words is "fifty-two billion, six hundred sixty-one million, four hundred twenty-six thousand, four hundred twenty-five".