252934421 has 2 divisors, whose sum is σ = 252934422. Its totient is φ = 252934420.

The previous prime is 252934399. The next prime is 252934463. The reversal of 252934421 is 124439252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156600196 + 96334225 = 12514^2 + 9815^2 .

It is a cyclic number.

It is not a de Polignac number, because 252934421 - 2²² = 248740117 is a prime.

It is a Sophie Germain 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 (252934481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126467210 + 126467211.

It is an arithmetic number, because the mean of its divisors is an integer number (126467211).

Almost surely, 2^252934421 is an apocalyptic number.

It is an amenable number.

252934421 is a deficient number, since it is larger than the sum of its proper divisors (1).

252934421 is an equidigital number, since it uses as much as digits as its factorization.

252934421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 252934421 is about 15903.9121287814. The cubic root of 252934421 is about 632.4157030143.

The spelling of 252934421 in words is "two hundred fifty-two million, nine hundred thirty-four thousand, four hundred twenty-one".