253416533 has 2 divisors, whose sum is σ = 253416534. Its totient is φ = 253416532.

The previous prime is 253416521. The next prime is 253416557. The reversal of 253416533 is 335614352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249703204 + 3713329 = 15802^2 + 1927^2 .

It is a cyclic number.

It is not a de Polignac number, because 253416533 - 2⁴ = 253416517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253416533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253416503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126708266 + 126708267.

It is an arithmetic number, because the mean of its divisors is an integer number (126708267).

Almost surely, 2^253416533 is an apocalyptic number.

It is an amenable number.

253416533 is a deficient number, since it is larger than the sum of its proper divisors (1).

253416533 is an equidigital number, since it uses as much as digits as its factorization.

253416533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 32.

The square root of 253416533 is about 15919.0619384435. The cubic root of 253416533 is about 632.8172585971.

The spelling of 253416533 in words is "two hundred fifty-three million, four hundred sixteen thousand, five hundred thirty-three".