400253053 has 2 divisors, whose sum is σ = 400253054. Its totient is φ = 400253052.

The previous prime is 400253047. The next prime is 400253071. The reversal of 400253053 is 350352004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386436964 + 13816089 = 19658^2 + 3717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400253053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400253003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200126526 + 200126527.

It is an arithmetic number, because the mean of its divisors is an integer number (200126527).

Almost surely, 2^400253053 is an apocalyptic number.

It is an amenable number.

400253053 is a deficient number, since it is larger than the sum of its proper divisors (1).

400253053 is an equidigital number, since it uses as much as digits as its factorization.

400253053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 400253053 is about 20006.3253247567. The cubic root of 400253053 is about 736.9616428448.

The spelling of 400253053 in words is "four hundred million, two hundred fifty-three thousand, fifty-three".