253769280 has 56 divisors (see below), whose sum is σ = 805720512. Its totient is φ = 67671552.

The previous prime is 253769279. The next prime is 253769287. The reversal of 253769280 is 82967352.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (253769287) 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, 131212 + ... + 133131.

Almost surely, 2^253769280 is an apocalyptic number.

253769280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253769280 is an abundant number, since it is smaller than the sum of its proper divisors (551951232).

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

253769280 is a wasteful number, since it uses less digits than its factorization.

253769280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264363 (or 264353 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 253769280 is about 15930.1374758663. The cubic root of 253769280 is about 633.1107423376.

It can be divided in two parts, 2537 and 69280, that added together give a palindrome (71817).

The spelling of 253769280 in words is "two hundred fifty-three million, seven hundred sixty-nine thousand, two hundred eighty".