113553532553521 has 2 divisors, whose sum is σ = 113553532553522. Its totient is φ = 113553532553520.

The previous prime is 113553532553509. The next prime is 113553532553603. The reversal of 113553532553521 is 125355235355311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108183630090496 + 5369902463025 = 10401136^2 + 2317305^2 .

It is a cyclic number.

It is not a de Polignac number, because 113553532553521 - 2³³ = 113544942618929 is a prime.

It is not a weakly prime, because it can be changed into another prime (113553532553221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56776766276760 + 56776766276761.

It is an arithmetic number, because the mean of its divisors is an integer number (56776766276761).

Almost surely, 2^{113553532553521} is an apocalyptic number.

It is an amenable number.

113553532553521 is a deficient number, since it is larger than the sum of its proper divisors (1).

113553532553521 is an equidigital number, since it uses as much as digits as its factorization.

113553532553521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5062500, while the sum is 49.

The spelling of 113553532553521 in words is "one hundred thirteen trillion, five hundred fifty-three billion, five hundred thirty-two million, five hundred fifty-three thousand, five hundred twenty-one".