404312053 has 2 divisors, whose sum is σ = 404312054. Its totient is φ = 404312052.

The previous prime is 404312023. The next prime is 404312057. The reversal of 404312053 is 350213404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347188689 + 57123364 = 18633^2 + 7558^2 .

It is a cyclic number.

It is not a de Polignac number, because 404312053 - 2⁵ = 404312021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404312057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202156026 + 202156027.

It is an arithmetic number, because the mean of its divisors is an integer number (202156027).

Almost surely, 2^404312053 is an apocalyptic number.

It is an amenable number.

404312053 is a deficient number, since it is larger than the sum of its proper divisors (1).

404312053 is an equidigital number, since it uses as much as digits as its factorization.

404312053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 404312053 is about 20107.5123523523. The cubic root of 404312053 is about 739.4444655700. Note that the first 4 decimals are identical.

Adding to 404312053 its reverse (350213404), we get a palindrome (754525457).

The spelling of 404312053 in words is "four hundred four million, three hundred twelve thousand, fifty-three".