23217055528757 has 2 divisors, whose sum is σ = 23217055528758. Its totient is φ = 23217055528756.

The previous prime is 23217055528729. The next prime is 23217055528787. The reversal of 23217055528757 is 75782555071232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21094923312241 + 2122132216516 = 4592921^2 + 1456754^2 .

It is a cyclic number.

It is not a de Polignac number, because 23217055528757 - 2¹⁰ = 23217055527733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23217055528696 and 23217055528705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23217055528787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608527764378 + 11608527764379.

It is an arithmetic number, because the mean of its divisors is an integer number (11608527764379).

Almost surely, 2^{23217055528757} is an apocalyptic number.

It is an amenable number.

23217055528757 is a deficient number, since it is larger than the sum of its proper divisors (1).

23217055528757 is an equidigital number, since it uses as much as digits as its factorization.

23217055528757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41160000, while the sum is 59.

The spelling of 23217055528757 in words is "twenty-three trillion, two hundred seventeen billion, fifty-five million, five hundred twenty-eight thousand, seven hundred fifty-seven".