2555671 has 8 divisors (see below), whose sum is σ = 2777600. Its totient is φ = 2342520.

The previous prime is 2555669. The next prime is 2555687. The reversal of 2555671 is 1765552.

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

It is a cyclic number.

It is not a de Polignac number, because 2555671 - 2¹ = 2555669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581 + ... + 2758.

It is an arithmetic number, because the mean of its divisors is an integer number (347200).

2^2555671 is an apocalyptic number.

2555671 is a deficient number, since it is larger than the sum of its proper divisors (221929).

2555671 is a wasteful number, since it uses less digits than its factorization.

2555671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389.

The product of its digits is 10500, while the sum is 31.

The square root of 2555671 is about 1598.6466151092. The cubic root of 2555671 is about 136.7209230011.

It can be divided in two parts, 25 and 55671, that added together give a square (55696 = 236²).

The spelling of 2555671 in words is "two million, five hundred fifty-five thousand, six hundred seventy-one".