405211253 has 2 divisors, whose sum is σ = 405211254. Its totient is φ = 405211252.

The previous prime is 405211223. The next prime is 405211259. The reversal of 405211253 is 352112504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263672644 + 141538609 = 16238^2 + 11897^2 .

It is a cyclic number.

It is not a de Polignac number, because 405211253 - 2⁶ = 405211189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405211259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202605626 + 202605627.

It is an arithmetic number, because the mean of its divisors is an integer number (202605627).

Almost surely, 2^405211253 is an apocalyptic number.

It is an amenable number.

405211253 is a deficient number, since it is larger than the sum of its proper divisors (1).

405211253 is an equidigital number, since it uses as much as digits as its factorization.

405211253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 405211253 is about 20129.8597362227. The cubic root of 405211253 is about 739.9922406053.

Adding to 405211253 its reverse (352112504), we get a palindrome (757323757).

The spelling of 405211253 in words is "four hundred five million, two hundred eleven thousand, two hundred fifty-three".