53728547 has 2 divisors, whose sum is σ = 53728548. Its totient is φ = 53728546.

The previous prime is 53728541. The next prime is 53728553. The reversal of 53728547 is 74582735.

It is a balanced prime because it is at equal distance from previous prime (53728541) and next prime (53728553).

It is a cyclic number.

It is not a de Polignac number, because 53728547 - 2⁴ = 53728531 is a prime.

It is a super-3 number, since 3×53728547³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (53728541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26864273 + 26864274.

It is an arithmetic number, because the mean of its divisors is an integer number (26864274).

Almost surely, 2^53728547 is an apocalyptic number.

53728547 is a deficient number, since it is larger than the sum of its proper divisors (1).

53728547 is an equidigital number, since it uses as much as digits as its factorization.

53728547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 41.

The square root of 53728547 is about 7329.9759208336. The cubic root of 53728547 is about 377.3419000838.

The spelling of 53728547 in words is "fifty-three million, seven hundred twenty-eight thousand, five hundred forty-seven".