2506555 has 8 divisors (see below), whose sum is σ = 3016944. Its totient is φ = 1999200.

The previous prime is 2506549. The next prime is 2506561. The reversal of 2506555 is 5556052.

It is an interprime number because it is at equal distance from previous prime (2506549) and next prime (2506561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2506555 - 2³ = 2506547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945 + ... + 2965.

It is an arithmetic number, because the mean of its divisors is an integer number (377118).

2^2506555 is an apocalyptic number.

2506555 is a deficient number, since it is larger than the sum of its proper divisors (510389).

2506555 is a wasteful number, since it uses less digits than its factorization.

2506555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 2506555 is about 1583.2103461006. The cubic root of 2506555 is about 135.8393973564.

The spelling of 2506555 in words is "two million, five hundred six thousand, five hundred fifty-five".