280566055 has 16 divisors (see below), whose sum is σ = 419756544. Its totient is φ = 174898080.

The previous prime is 280566049. The next prime is 280566061. The reversal of 280566055 is 550665082.

It is an interprime number because it is at equal distance from previous prime (280566049) and next prime (280566061).

It is not a de Polignac number, because 280566055 - 2¹⁵ = 280533287 is a prime.

It is a super-2 number, since 2×280566055² = 157434622436526050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363987 + ... + 364756.

It is an arithmetic number, because the mean of its divisors is an integer number (26234784).

Almost surely, 2^280566055 is an apocalyptic number.

280566055 is a deficient number, since it is larger than the sum of its proper divisors (139190489).

280566055 is a wasteful number, since it uses less digits than its factorization.

280566055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728766.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 280566055 is about 16750.1061190668. The cubic root of 280566055 is about 654.6538232497.

The spelling of 280566055 in words is "two hundred eighty million, five hundred sixty-six thousand, fifty-five".