662522881 has 4 divisors (see below), whose sum is σ = 665441712. Its totient is φ = 659604052.

The previous prime is 662522879. The next prime is 662522911. The reversal of 662522881 is 188225266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188225266 = 2 ⋅94112633.

It is a cyclic number.

It is not a de Polignac number, because 662522881 - 2¹ = 662522879 is a prime.

It is a super-2 number, since 2×662522881² = 877873135697080322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662562881) 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, 1459075 + ... + 1459528.

It is an arithmetic number, because the mean of its divisors is an integer number (166360428).

Almost surely, 2^662522881 is an apocalyptic number.

It is an amenable number.

662522881 is a deficient number, since it is larger than the sum of its proper divisors (2918831).

662522881 is a wasteful number, since it uses less digits than its factorization.

662522881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918830.

The product of its digits is 92160, while the sum is 40.

The square root of 662522881 is about 25739.5198284661. The cubic root of 662522881 is about 871.7667365749.

The spelling of 662522881 in words is "six hundred sixty-two million, five hundred twenty-two thousand, eight hundred eighty-one".