10520542405450 has 108 divisors (see below), whose sum is σ = 25020508627926. Its totient is φ = 3279130008000.

The previous prime is 10520542405391. The next prime is 10520542405463. The reversal of 10520542405450 is 5450424502501.

It can be written as a sum of positive squares in 3 ways, for example, as 9981726215769 + 538816189681 = 3159387^2 + 734041^2 .

It is a super-2 number, since 2×10520542405450² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 17447761 + ... + 18040660.

Almost surely, 2^{10520542405450} is an apocalyptic number.

10520542405450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10520542405450 is an abundant number, since it is smaller than the sum of its proper divisors (14499966222476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10520542405450 is a wasteful number, since it uses less digits than its factorization.

10520542405450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35488469 (or 35488446 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

Adding to 10520542405450 its reverse (5450424502501), we get a palindrome (15970966907951).

The spelling of 10520542405450 in words is "ten trillion, five hundred twenty billion, five hundred forty-two million, four hundred five thousand, four hundred fifty".