52444642 has 4 divisors (see below), whose sum is σ = 78666966. Its totient is φ = 26222320.

The previous prime is 52444631. The next prime is 52444661. The reversal of 52444642 is 24644425.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 27133681 + 25310961 = 5209^2 + 5031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13111159 + ... + 13111162.

Almost surely, 2^52444642 is an apocalyptic number.

52444642 is a deficient number, since it is larger than the sum of its proper divisors (26222324).

52444642 is a wasteful number, since it uses less digits than its factorization.

52444642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26222323.

The product of its digits is 30720, while the sum is 31.

The square root of 52444642 is about 7241.8673006346. The cubic root of 52444642 is about 374.3119638703.

The spelling of 52444642 in words is "fifty-two million, four hundred forty-four thousand, six hundred forty-two".