53517213601 has 2 divisors, whose sum is σ = 53517213602. Its totient is φ = 53517213600.

The previous prime is 53517213473. The next prime is 53517213679. The reversal of 53517213601 is 10631271535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46645632576 + 6871581025 = 215976^2 + 82895^2 .

It is a cyclic number.

It is not a de Polignac number, because 53517213601 - 2⁷ = 53517213473 is a prime.

It is not a weakly prime, because it can be changed into another prime (53517213301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26758606800 + 26758606801.

It is an arithmetic number, because the mean of its divisors is an integer number (26758606801).

Almost surely, 2^53517213601 is an apocalyptic number.

It is an amenable number.

53517213601 is a deficient number, since it is larger than the sum of its proper divisors (1).

53517213601 is an equidigital number, since it uses as much as digits as its factorization.

53517213601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 53517213601 in words is "fifty-three billion, five hundred seventeen million, two hundred thirteen thousand, six hundred one".