253403535 has 64 divisors (see below), whose sum is σ = 527523840. Its totient is φ = 100721280.

The previous prime is 253403509. The next prime is 253403561. The reversal of 253403535 is 535304352.

It is an interprime number because it is at equal distance from previous prime (253403509) and next prime (253403561).

It is not a de Polignac number, because 253403535 - 2⁵ = 253403503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21796 + ... + 31334.

It is an arithmetic number, because the mean of its divisors is an integer number (8242560).

Almost surely, 2^253403535 is an apocalyptic number.

253403535 is an abundant number, since it is smaller than the sum of its proper divisors (274120305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253403535 is a wasteful number, since it uses less digits than its factorization.

253403535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588.

The product of its (nonzero) digits is 27000, while the sum is 30.

The square root of 253403535 is about 15918.6536805095. The cubic root of 253403535 is about 632.8064391250.

Adding to 253403535 its reverse (535304352), we get a palindrome (788707887).

The spelling of 253403535 in words is "two hundred fifty-three million, four hundred three thousand, five hundred thirty-five".