625023052313221 has 2 divisors, whose sum is σ = 625023052313222. Its totient is φ = 625023052313220.

The previous prime is 625023052313213. The next prime is 625023052313251. The reversal of 625023052313221 is 122313250320526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 477719050536225 + 147304001776996 = 21856785^2 + 12136886^2 .

It is a cyclic number.

It is not a de Polignac number, because 625023052313221 - 2³ = 625023052313213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625023052313251) 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 as a sum of consecutive naturals, namely, 312511526156610 + 312511526156611.

It is an arithmetic number, because the mean of its divisors is an integer number (312511526156611).

Almost surely, 2^{625023052313221} is an apocalyptic number.

It is an amenable number.

625023052313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

625023052313221 is an equidigital number, since it uses as much as digits as its factorization.

625023052313221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 625023052313221 in words is "six hundred twenty-five trillion, twenty-three billion, fifty-two million, three hundred thirteen thousand, two hundred twenty-one".