253403044 has 12 divisors (see below), whose sum is σ = 458747100. Its totient is φ = 122332448.

The previous prime is 253403039. The next prime is 253403063. The reversal of 253403044 is 440304352.

It can be written as a sum of positive squares in 2 ways, for example, as 217857600 + 35545444 = 14760^2 + 5962^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092139 + ... + 1092370.

It is an arithmetic number, because the mean of its divisors is an integer number (38228925).

Almost surely, 2^253403044 is an apocalyptic number.

It is an amenable number.

253403044 is a deficient number, since it is larger than the sum of its proper divisors (205344056).

253403044 is a wasteful number, since it uses less digits than its factorization.

253403044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184542 (or 2184540 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 253403044 is about 15918.6382583436. The cubic root of 253403044 is about 632.8060304117.

Adding to 253403044 its reverse (440304352), we get a palindrome (693707396).

The spelling of 253403044 in words is "two hundred fifty-three million, four hundred three thousand, forty-four".