64525213353631 has 2 divisors, whose sum is σ = 64525213353632. Its totient is φ = 64525213353630.

The previous prime is 64525213353541. The next prime is 64525213353647. The reversal of 64525213353631 is 13635331252546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64525213353631 - 2⁹ = 64525213353119 is a prime.

It is a super-2 number, since 2×64525213353631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64525213353331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32262606676815 + 32262606676816.

It is an arithmetic number, because the mean of its divisors is an integer number (32262606676816).

Almost surely, 2^{64525213353631} is an apocalyptic number.

64525213353631 is a deficient number, since it is larger than the sum of its proper divisors (1).

64525213353631 is an equidigital number, since it uses as much as digits as its factorization.

64525213353631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832000, while the sum is 49.

The spelling of 64525213353631 in words is "sixty-four trillion, five hundred twenty-five billion, two hundred thirteen million, three hundred fifty-three thousand, six hundred thirty-one".