405025253 has 2 divisors, whose sum is σ = 405025254. Its totient is φ = 405025252.

The previous prime is 405025249. The next prime is 405025259. The reversal of 405025253 is 352520504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239568484 + 165456769 = 15478^2 + 12863^2 .

It is a cyclic number.

It is not a de Polignac number, because 405025253 - 2² = 405025249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405025259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202512626 + 202512627.

It is an arithmetic number, because the mean of its divisors is an integer number (202512627).

Almost surely, 2^405025253 is an apocalyptic number.

It is an amenable number.

405025253 is a deficient number, since it is larger than the sum of its proper divisors (1).

405025253 is an equidigital number, since it uses as much as digits as its factorization.

405025253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 405025253 is about 20125.2392035474. The cubic root of 405025253 is about 739.8789995730.

Adding to 405025253 its reverse (352520504), we get a palindrome (757545757).

The spelling of 405025253 in words is "four hundred five million, twenty-five thousand, two hundred fifty-three".