252823447 has 2 divisors, whose sum is σ = 252823448. Its totient is φ = 252823446.

The previous prime is 252823433. The next prime is 252823451. The reversal of 252823447 is 744328252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252823447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252823477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126411723 + 126411724.

It is an arithmetic number, because the mean of its divisors is an integer number (126411724).

Almost surely, 2^252823447 is an apocalyptic number.

252823447 is a deficient number, since it is larger than the sum of its proper divisors (1).

252823447 is an equidigital number, since it uses as much as digits as its factorization.

252823447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 37.

The square root of 252823447 is about 15900.4228560124. The cubic root of 252823447 is about 632.3231995023.

The spelling of 252823447 in words is "two hundred fifty-two million, eight hundred twenty-three thousand, four hundred forty-seven".