10552021871 has 4 divisors (see below), whose sum is σ = 10566537072. Its totient is φ = 10537506672.

The previous prime is 10552021853. The next prime is 10552021891. The reversal of 10552021871 is 17812025501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10552021871 - 2¹⁰ = 10552020847 is a prime.

It is a super-2 number, since 2×10552021871² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10552021891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7256510 + ... + 7257963.

It is an arithmetic number, because the mean of its divisors is an integer number (2641634268).

Almost surely, 2^10552021871 is an apocalyptic number.

10552021871 is a deficient number, since it is larger than the sum of its proper divisors (14515201).

10552021871 is an equidigital number, since it uses as much as digits as its factorization.

10552021871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14515200.

The product of its (nonzero) digits is 5600, while the sum is 32.

The spelling of 10552021871 in words is "ten billion, five hundred fifty-two million, twenty-one thousand, eight hundred seventy-one".