404751253 has 2 divisors, whose sum is σ = 404751254. Its totient is φ = 404751252.

The previous prime is 404751247. The next prime is 404751271. The reversal of 404751253 is 352157404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303909489 + 100841764 = 17433^2 + 10042^2 .

It is a cyclic number.

It is not a de Polignac number, because 404751253 - 2²¹ = 402654101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404751353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202375626 + 202375627.

It is an arithmetic number, because the mean of its divisors is an integer number (202375627).

Almost surely, 2^404751253 is an apocalyptic number.

It is an amenable number.

404751253 is a deficient number, since it is larger than the sum of its proper divisors (1).

404751253 is an equidigital number, since it uses as much as digits as its factorization.

404751253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 404751253 is about 20118.4306793547. The cubic root of 404751253 is about 739.7121189678.

The spelling of 404751253 in words is "four hundred four million, seven hundred fifty-one thousand, two hundred fifty-three".