405267253 has 4 divisors (see below), whose sum is σ = 416220460. Its totient is φ = 394314048.

The previous prime is 405267251. The next prime is 405267259. The reversal of 405267253 is 352762504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222666084 + 182601169 = 14922^2 + 13513^2 .

It is a cyclic number.

It is not a de Polignac number, because 405267253 - 2¹ = 405267251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405267251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5476548 + ... + 5476621.

It is an arithmetic number, because the mean of its divisors is an integer number (104055115).

Almost surely, 2^405267253 is an apocalyptic number.

It is an amenable number.

405267253 is a deficient number, since it is larger than the sum of its proper divisors (10953207).

405267253 is a wasteful number, since it uses less digits than its factorization.

405267253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953206.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 405267253 is about 20131.2506566284. The cubic root of 405267253 is about 740.0263278921.

The spelling of 405267253 in words is "four hundred five million, two hundred sixty-seven thousand, two hundred fifty-three".