10521606055 has 4 divisors (see below), whose sum is σ = 12625927272. Its totient is φ = 8417284840.

The previous prime is 10521605989. The next prime is 10521606061. The reversal of 10521606055 is 55060612501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55060612501 = 16921 ⋅3253981.

It is not a de Polignac number, because 10521606055 - 2¹⁷ = 10521474983 is a prime.

It is a super-2 number, since 2×10521606055² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052160601 + ... + 1052160610.

It is an arithmetic number, because the mean of its divisors is an integer number (3156481818).

Almost surely, 2^10521606055 is an apocalyptic number.

10521606055 is a deficient number, since it is larger than the sum of its proper divisors (2104321217).

10521606055 is an equidigital number, since it uses as much as digits as its factorization.

10521606055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104321216.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 10521606055 in words is "ten billion, five hundred twenty-one million, six hundred six thousand, fifty-five".