53333149 has 2 divisors, whose sum is σ = 53333150. Its totient is φ = 53333148.

The previous prime is 53333099. The next prime is 53333167. The reversal of 53333149 is 94133335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 480249 = 7270^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 53333149 - 2²¹ = 51235997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53333149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53333179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26666574 + 26666575.

It is an arithmetic number, because the mean of its divisors is an integer number (26666575).

Almost surely, 2^53333149 is an apocalyptic number.

It is an amenable number.

53333149 is a deficient number, since it is larger than the sum of its proper divisors (1).

53333149 is an equidigital number, since it uses as much as digits as its factorization.

53333149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 31.

The square root of 53333149 is about 7302.9548129507. The cubic root of 53333149 is about 376.4139778911.

The spelling of 53333149 in words is "fifty-three million, three hundred thirty-three thousand, one hundred forty-nine".