69053021 has 2 divisors, whose sum is σ = 69053022. Its totient is φ = 69053020.

The previous prime is 69052987. The next prime is 69053059. The reversal of 69053021 is 12035096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39513796 + 29539225 = 6286^2 + 5435^2 .

It is a cyclic number.

It is not a de Polignac number, because 69053021 - 2²⁶ = 1944157 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69050021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34526510 + 34526511.

It is an arithmetic number, because the mean of its divisors is an integer number (34526511).

Almost surely, 2^69053021 is an apocalyptic number.

It is an amenable number.

69053021 is a deficient number, since it is larger than the sum of its proper divisors (1).

69053021 is an equidigital number, since it uses as much as digits as its factorization.

69053021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 69053021 is about 8309.8147392105. The cubic root of 69053021 is about 410.2616236216.

The spelling of 69053021 in words is "sixty-nine million, fifty-three thousand, twenty-one".