26520516450601 has 4 divisors (see below), whose sum is σ = 26523144596304. Its totient is φ = 26517888304900.

The previous prime is 26520516450541. The next prime is 26520516450611. The reversal of 26520516450601 is 10605461502562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26520516450601 is a prime.

It is a super-2 number, since 2×26520516450601² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26520516450611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314057715 + ... + 1314077896.

It is an arithmetic number, because the mean of its divisors is an integer number (6630786149076).

Almost surely, 2^{26520516450601} is an apocalyptic number.

It is an amenable number.

26520516450601 is a deficient number, since it is larger than the sum of its proper divisors (2628145703).

26520516450601 is a wasteful number, since it uses less digits than its factorization.

26520516450601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628145702.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 26520516450601 in words is "twenty-six trillion, five hundred twenty billion, five hundred sixteen million, four hundred fifty thousand, six hundred one".