2555511 has 16 divisors (see below), whose sum is σ = 3949824. Its totient is φ = 1439424.

The previous prime is 2555477. The next prime is 2555521. The reversal of 2555511 is 1155552.

It is not a de Polignac number, because 2555511 - 2¹⁵ = 2522743 is a prime.

It is a super-2 number, since 2×2555511² = 13061272942242, which contains 22 as substring.

2555511 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555521) 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, 700 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (246864).

2^2555511 is an apocalyptic number.

2555511 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2555511 is a deficient number, since it is larger than the sum of its proper divisors (1394313).

2555511 is a wasteful number, since it uses less digits than its factorization.

2555511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its digits is 1250, while the sum is 24.

The square root of 2555511 is about 1598.5965719968. The cubic root of 2555511 is about 136.7180697642.

It can be divided in two parts, 255551 and 1, that added together give a palindrome (255552).

The spelling of 2555511 in words is "two million, five hundred fifty-five thousand, five hundred eleven".