253135400 has 48 divisors (see below), whose sum is σ = 672620640. Its totient is φ = 86788800.

The previous prime is 253135397. The next prime is 253135411. The reversal of 253135400 is 4531352.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89006 + ... + 91805.

It is an arithmetic number, because the mean of its divisors is an integer number (14012930).

Almost surely, 2^253135400 is an apocalyptic number.

253135400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253135400 is an abundant number, since it is smaller than the sum of its proper divisors (419485240).

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

253135400 is a wasteful number, since it uses less digits than its factorization.

253135400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180834 (or 180825 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 253135400 is about 15910.2294138080. The cubic root of 253135400 is about 632.5831622648.

Adding to 253135400 its reverse (4531352), we get a palindrome (257666752).

The spelling of 253135400 in words is "two hundred fifty-three million, one hundred thirty-five thousand, four hundred".