10520423155055 has 32 divisors (see below), whose sum is σ = 14525864317440. Its totient is φ = 7234110276480.

The previous prime is 10520423155049. The next prime is 10520423155097. The reversal of 10520423155055 is 55055132402501.

It is not a de Polignac number, because 10520423155055 - 2⁶ = 10520423154991 is a prime.

It is a super-2 number, since 2×10520423155055² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9481712 + ... + 10532981.

It is an arithmetic number, because the mean of its divisors is an integer number (453933259920).

Almost surely, 2^{10520423155055} is an apocalyptic number.

10520423155055 is a deficient number, since it is larger than the sum of its proper divisors (4005441162385).

10520423155055 is a wasteful number, since it uses less digits than its factorization.

10520423155055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20015231.

The product of its (nonzero) digits is 150000, while the sum is 38.

Adding to 10520423155055 its reverse (55055132402501), we get a palindrome (65575555557556).

The spelling of 10520423155055 in words is "ten trillion, five hundred twenty billion, four hundred twenty-three million, one hundred fifty-five thousand, fifty-five".