253294280 has 32 divisors (see below), whose sum is σ = 582042240. Its totient is φ = 99161280.

The previous prime is 253294277. The next prime is 253294289. The reversal of 253294280 is 82492352.

It is a self number, because there is not a number n which added to its sum of digits gives 253294280.

It is not an unprimeable number, because it can be changed into a prime (253294289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65486 + ... + 69245.

It is an arithmetic number, because the mean of its divisors is an integer number (18188820).

Almost surely, 2^253294280 is an apocalyptic number.

253294280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253294280 is an abundant number, since it is smaller than the sum of its proper divisors (328747960).

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

253294280 is a wasteful number, since it uses less digits than its factorization.

253294280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134789 (or 134785 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 253294280 is about 15915.2216447023. The cubic root of 253294280 is about 632.7154811646.

The spelling of 253294280 in words is "two hundred fifty-three million, two hundred ninety-four thousand, two hundred eighty".