260028555 has 24 divisors (see below), whose sum is σ = 421952688. Its totient is φ = 136740096.

The previous prime is 260028553. The next prime is 260028599. The reversal of 260028555 is 555820062.

It is not a de Polignac number, because 260028555 - 2¹ = 260028553 is a prime.

It is a super-2 number, since 2×260028555² = 135229698830776050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260028553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78309 + ... + 81561.

It is an arithmetic number, because the mean of its divisors is an integer number (17581362).

Almost surely, 2^260028555 is an apocalyptic number.

260028555 is a deficient number, since it is larger than the sum of its proper divisors (161924133).

260028555 is an equidigital number, since it uses as much as digits as its factorization.

260028555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 260028555 is about 16125.4009252483. The cubic root of 260028555 is about 638.2737947243.

It can be divided in two parts, 2600285 and 55, that added together give a triangular number (2600340 = T₂₂₈₀).

The spelling of 260028555 in words is "two hundred sixty million, twenty-eight thousand, five hundred fifty-five".