105115082557 has 2 divisors, whose sum is σ = 105115082558. Its totient is φ = 105115082556.

The previous prime is 105115082539. The next prime is 105115082561. The reversal of 105115082557 is 755280511501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82549334596 + 22565747961 = 287314^2 + 150219^2 .

It is a cyclic number.

It is not a de Polignac number, because 105115082557 - 2¹¹ = 105115080509 is a prime.

It is a super-2 number, since 2×105115082557² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105115082537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52557541278 + 52557541279.

It is an arithmetic number, because the mean of its divisors is an integer number (52557541279).

Almost surely, 2^105115082557 is an apocalyptic number.

It is an amenable number.

105115082557 is a deficient number, since it is larger than the sum of its proper divisors (1).

105115082557 is an equidigital number, since it uses as much as digits as its factorization.

105115082557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70000, while the sum is 40.

The spelling of 105115082557 in words is "one hundred five billion, one hundred fifteen million, eighty-two thousand, five hundred fifty-seven".