280035255000 has 80 divisors (see below), whose sum is σ = 874830183480. Its totient is φ = 74676064000.

The previous prime is 280035254981. The next prime is 280035255007. The reversal of 280035255000 is 552530082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280035255007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9319509 + ... + 9349508.

Almost surely, 2^280035255000 is an apocalyptic number.

280035255000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280035255000 is an abundant number, since it is smaller than the sum of its proper divisors (594794928480).

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

280035255000 is a wasteful number, since it uses less digits than its factorization.

280035255000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18669046 (or 18669027 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 280035255000 its reverse (552530082), we get a palindrome (280587785082).

The spelling of 280035255000 in words is "two hundred eighty billion, thirty-five million, two hundred fifty-five thousand".