69216253 has 2 divisors, whose sum is σ = 69216254. Its totient is φ = 69216252.

The previous prime is 69216239. The next prime is 69216271. The reversal of 69216253 is 35261296.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63154809 + 6061444 = 7947^2 + 2462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69216253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69216353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34608126 + 34608127.

It is an arithmetic number, because the mean of its divisors is an integer number (34608127).

Almost surely, 2^69216253 is an apocalyptic number.

It is an amenable number.

69216253 is a deficient number, since it is larger than the sum of its proper divisors (1).

69216253 is an equidigital number, since it uses as much as digits as its factorization.

69216253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 69216253 is about 8319.6305807410. The cubic root of 69216253 is about 410.5846368943.

The spelling of 69216253 in words is "sixty-nine million, two hundred sixteen thousand, two hundred fifty-three".