2681505 has 24 divisors (see below), whose sum is σ = 4822272. Its totient is φ = 1429488.

The previous prime is 2681477. The next prime is 2681507. The reversal of 2681505 is 5051862.

2681505 = 32³ + 33³ + ... + 58³.

It is not a de Polignac number, because 2681505 - 2⁵ = 2681473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2681507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (200928).

2^2681505 is an apocalyptic number.

It is an amenable number.

2681505 is a deficient number, since it is larger than the sum of its proper divisors (2140767).

2681505 is an equidigital number, since it uses as much as digits as its factorization.

2681505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2681505 is about 1637.5301523941. The cubic root of 2681505 is about 138.9289874147.

The spelling of 2681505 in words is "two million, six hundred eighty-one thousand, five hundred five".