53728474 has 8 divisors (see below), whose sum is σ = 83371860. Its totient is φ = 25937856.

The previous prime is 53728463. The next prime is 53728481. The reversal of 53728474 is 47482735.

It can be written as a sum of positive squares in 2 ways, for example, as 51022449 + 2706025 = 7143^2 + 1645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463119 + ... + 463234.

Almost surely, 2^53728474 is an apocalyptic number.

53728474 is a deficient number, since it is larger than the sum of its proper divisors (29643386).

53728474 is a wasteful number, since it uses less digits than its factorization.

53728474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926384.

The product of its digits is 188160, while the sum is 40.

The square root of 53728474 is about 7329.9709412794. The cubic root of 53728474 is about 377.3417291879.

The spelling of 53728474 in words is "fifty-three million, seven hundred twenty-eight thousand, four hundred seventy-four".