33125779 has 2 divisors, whose sum is σ = 33125780. Its totient is φ = 33125778.

The previous prime is 33125749. The next prime is 33125789. The reversal of 33125779 is 97752133.

It is a strong prime.

It is an emirp because it is prime and its reverse (97752133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33125779 - 2¹³ = 33117587 is a prime.

It is not a weakly prime, because it can be changed into another prime (33125749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16562889 + 16562890.

It is an arithmetic number, because the mean of its divisors is an integer number (16562890).

Almost surely, 2^33125779 is an apocalyptic number.

33125779 is a deficient number, since it is larger than the sum of its proper divisors (1).

33125779 is an equidigital number, since it uses as much as digits as its factorization.

33125779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 37.

The square root of 33125779 is about 5755.4998914082. The cubic root of 33125779 is about 321.1604319633.

The spelling of 33125779 in words is "thirty-three million, one hundred twenty-five thousand, seven hundred seventy-nine".