63535259257 has 2 divisors, whose sum is σ = 63535259258. Its totient is φ = 63535259256.

The previous prime is 63535259251. The next prime is 63535259279. The reversal of 63535259257 is 75295253536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60066167056 + 3469092201 = 245084^2 + 58899^2 .

It is a cyclic number.

It is not a de Polignac number, because 63535259257 - 2¹⁹ = 63534734969 is a prime.

It is not a weakly prime, because it can be changed into another prime (63535259251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31767629628 + 31767629629.

It is an arithmetic number, because the mean of its divisors is an integer number (31767629629).

Almost surely, 2^63535259257 is an apocalyptic number.

It is an amenable number.

63535259257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63535259257 is an equidigital number, since it uses as much as digits as its factorization.

63535259257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505000, while the sum is 52.

The spelling of 63535259257 in words is "sixty-three billion, five hundred thirty-five million, two hundred fifty-nine thousand, two hundred fifty-seven".