52778446 has 16 divisors (see below), whose sum is σ = 91829376. Its totient is φ = 22281336.

The previous prime is 52778443. The next prime is 52778471. The reversal of 52778446 is 64487725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52778443) 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, 27196 + ... + 29071.

It is an arithmetic number, because the mean of its divisors is an integer number (5739336).

Almost surely, 2^52778446 is an apocalyptic number.

52778446 is a deficient number, since it is larger than the sum of its proper divisors (39050930).

52778446 is a wasteful number, since it uses less digits than its factorization.

52778446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56343.

The product of its digits is 376320, while the sum is 43.

The square root of 52778446 is about 7264.8775626297. The cubic root of 52778446 is about 375.1044355052.

The spelling of 52778446 in words is "fifty-two million, seven hundred seventy-eight thousand, four hundred forty-six".