280260057 has 48 divisors (see below), whose sum is σ = 489590784. Its totient is φ = 140868000.

The previous prime is 280260053. The next prime is 280260061. The reversal of 280260057 is 750062082.

It is an interprime number because it is at equal distance from previous prime (280260053) and next prime (280260061).

It is not a de Polignac number, because 280260057 - 2² = 280260053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280260053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47332 + ... + 52922.

It is an arithmetic number, because the mean of its divisors is an integer number (10199808).

Almost surely, 2^280260057 is an apocalyptic number.

It is an amenable number.

280260057 is a deficient number, since it is larger than the sum of its proper divisors (209330727).

280260057 is a wasteful number, since it uses less digits than its factorization.

280260057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5650 (or 5643 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 280260057 is about 16740.9694163749. The cubic root of 280260057 is about 654.4157383398.

The spelling of 280260057 in words is "two hundred eighty million, two hundred sixty thousand, fifty-seven".