2555770 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 845376.

The previous prime is 2555767. The next prime is 2555779. The reversal of 2555770 is 775552.

It is not an unprimeable number, because it can be changed into a prime (2555779) 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, 1401 + ... + 2659.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2555770 is an apocalyptic number.

2555770 is an abundant number, since it is smaller than the sum of its proper divisors (2887430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555770 is a wasteful number, since it uses less digits than its factorization.

2555770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 2555770 is about 1598.6775785004. The cubic root of 2555770 is about 136.7226883818.

The spelling of 2555770 in words is "two million, five hundred fifty-five thousand, seven hundred seventy".