52162448881 has 9 divisors (see below), whose sum is σ = 52391612491. Its totient is φ = 51934286272.

The previous prime is 52162448879. The next prime is 52162448887. The reversal of 52162448881 is 18884426125.

The square root of 52162448881 is 228391.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21192080625 + 30970368256 = 145575^2 + 175984^2 .

It is not a de Polignac number, because 52162448881 - 2¹ = 52162448879 is a prime.

It is a super-2 number, since 2×52162448881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52162448887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 80621700 + ... + 80622346.

Almost surely, 2^52162448881 is an apocalyptic number.

52162448881 is the 228391-st square number.

52162448881 is the 114196-th centered octagonal number.

It is an amenable number.

52162448881 is a deficient number, since it is larger than the sum of its proper divisors (229163610).

52162448881 is an frugal number, since it uses more digits than its factorization.

52162448881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000 (or 1000 counting only the distinct ones).

The product of its digits is 983040, while the sum is 49.

Multiplying 52162448881 by its sum of digits (49), we get a square (2555959995169 = 1598737²).

The spelling of 52162448881 in words is "fifty-two billion, one hundred sixty-two million, four hundred forty-eight thousand, eight hundred eighty-one".