253541404 has 24 divisors (see below), whose sum is σ = 447971328. Its totient is φ = 125555760.

The previous prime is 253541389. The next prime is 253541419. The reversal of 253541404 is 404145352.

It is an interprime number because it is at equal distance from previous prime (253541389) and next prime (253541419).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255349 + ... + 256339.

It is an arithmetic number, because the mean of its divisors is an integer number (18665472).

Almost surely, 2^253541404 is an apocalyptic number.

It is an amenable number.

253541404 is a deficient number, since it is larger than the sum of its proper divisors (194429924).

253541404 is a wasteful number, since it uses less digits than its factorization.

253541404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 253541404 is about 15922.9835144046. The cubic root of 253541404 is about 632.9211817672.

Adding to 253541404 its reverse (404145352), we get a palindrome (657686756).

The spelling of 253541404 in words is "two hundred fifty-three million, five hundred forty-one thousand, four hundred four".