5305666442 has 16 divisors (see below), whose sum is σ = 8585642952. Its totient is φ = 2449674240.

The previous prime is 5305666441. The next prime is 5305666477. The reversal of 5305666442 is 2446665035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4881677161 + 423989281 = 69869^2 + 20591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5305666442.

It is not an unprimeable number, because it can be changed into a prime (5305666441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470359 + ... + 1473962.

Almost surely, 2^5305666442 is an apocalyptic number.

5305666442 is a deficient number, since it is larger than the sum of its proper divisors (3279976510).

5305666442 is a wasteful number, since it uses less digits than its factorization.

5305666442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944393.

The product of its (nonzero) digits is 518400, while the sum is 41.

The square root of 5305666442 is about 72840.0057797911. The cubic root of 5305666442 is about 1744.1345332646.

The spelling of 5305666442 in words is "five billion, three hundred five million, six hundred sixty-six thousand, four hundred forty-two".