52672445578 has 4 divisors (see below), whose sum is σ = 79008668370. Its totient is φ = 26336222788.

The previous prime is 52672445549. The next prime is 52672445597. The reversal of 52672445578 is 87554427625.

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., 31345640209 + 21326805369 = 177047^2 + 146037^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13168111393 + ... + 13168111396.

Almost surely, 2^52672445578 is an apocalyptic number.

52672445578 is a deficient number, since it is larger than the sum of its proper divisors (26336222792).

52672445578 is a wasteful number, since it uses less digits than its factorization.

52672445578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26336222791.

The product of its digits is 18816000, while the sum is 55.

The spelling of 52672445578 in words is "fifty-two billion, six hundred seventy-two million, four hundred forty-five thousand, five hundred seventy-eight".