280055671 has 16 divisors (see below), whose sum is σ = 341349120. Its totient is φ = 224288640.

The previous prime is 280055663. The next prime is 280055693. The reversal of 280055671 is 176550082.

It is a cyclic number.

It is not a de Polignac number, because 280055671 - 2³ = 280055663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280055621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8076 + ... + 25006.

It is an arithmetic number, because the mean of its divisors is an integer number (21334320).

Almost surely, 2^280055671 is an apocalyptic number.

280055671 is a deficient number, since it is larger than the sum of its proper divisors (61293449).

280055671 is a wasteful number, since it uses less digits than its factorization.

280055671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17094.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 280055671 is about 16734.8639373017. The cubic root of 280055671 is about 654.2566171484.

The spelling of 280055671 in words is "two hundred eighty million, fifty-five thousand, six hundred seventy-one".