591025481257 has 2 divisors, whose sum is σ = 591025481258. Its totient is φ = 591025481256.

The previous prime is 591025481251. The next prime is 591025481401. The reversal of 591025481257 is 752184520195.

591025481257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590898152601 + 127328656 = 768699^2 + 11284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-591025481257 is a prime.

It is a super-2 number, since 2×591025481257² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 591025481257.

It is not a weakly prime, because it can be changed into another prime (591025481251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295512740628 + 295512740629.

It is an arithmetic number, because the mean of its divisors is an integer number (295512740629).

Almost surely, 2^591025481257 is an apocalyptic number.

It is an amenable number.

591025481257 is a deficient number, since it is larger than the sum of its proper divisors (1).

591025481257 is an equidigital number, since it uses as much as digits as its factorization.

591025481257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 591025481257 in words is "five hundred ninety-one billion, twenty-five million, four hundred eighty-one thousand, two hundred fifty-seven".