53447851 has 2 divisors, whose sum is σ = 53447852. Its totient is φ = 53447850.

The previous prime is 53447819. The next prime is 53447857. The reversal of 53447851 is 15874435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53447851 - 2⁵ = 53447819 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53447851.

It is not a weakly prime, because it can be changed into another prime (53447857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26723925 + 26723926.

It is an arithmetic number, because the mean of its divisors is an integer number (26723926).

Almost surely, 2^53447851 is an apocalyptic number.

53447851 is a deficient number, since it is larger than the sum of its proper divisors (1).

53447851 is an equidigital number, since it uses as much as digits as its factorization.

53447851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

The square root of 53447851 is about 7310.8037177864. The cubic root of 53447851 is about 376.6836320793.

The spelling of 53447851 in words is "fifty-three million, four hundred forty-seven thousand, eight hundred fifty-one".