52974728 has 8 divisors (see below), whose sum is σ = 99327630. Its totient is φ = 26487360.

The previous prime is 52974721. The next prime is 52974731. The reversal of 52974728 is 82747925.

It can be written as a sum of positive squares in only one way, i.e., 36990724 + 15984004 = 6082^2 + 3998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (52974721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310913 + ... + 3310928.

Almost surely, 2^52974728 is an apocalyptic number.

It is an amenable number.

52974728 is a deficient number, since it is larger than the sum of its proper divisors (46352902).

52974728 is a wasteful number, since it uses less digits than its factorization.

52974728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6621847 (or 6621843 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 52974728 is about 7278.3739942380. The cubic root of 52974728 is about 375.5688622486.

It can be divided in two parts, 529 and 74728, that added together give a palindrome (75257).

The spelling of 52974728 in words is "fifty-two million, nine hundred seventy-four thousand, seven hundred twenty-eight".