253335140 has 24 divisors (see below), whose sum is σ = 532311360. Its totient is φ = 101275488.

The previous prime is 253335109. The next prime is 253335157. The reversal of 253335140 is 41533352.

253335140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 53801 + ... + 58319.

It is an arithmetic number, because the mean of its divisors is an integer number (22179640).

Almost surely, 2^253335140 is an apocalyptic number.

253335140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253335140 is an abundant number, since it is smaller than the sum of its proper divisors (278976220).

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

253335140 is a wasteful number, since it uses less digits than its factorization.

253335140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331 (or 7329 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 253335140 is about 15916.5052696878. The cubic root of 253335140 is about 632.7495013625.

Adding to 253335140 its reverse (41533352), we get a palindrome (294868492).

It can be divided in two parts, 2533 and 35140, that added together give a palindrome (37673).

The spelling of 253335140 in words is "two hundred fifty-three million, three hundred thirty-five thousand, one hundred forty".