2564055 has 40 divisors (see below), whose sum is σ = 4960032. Its totient is φ = 1259712.

The previous prime is 2564053. The next prime is 2564057. The reversal of 2564055 is 5504652.

2564055 is a `hidden beast` number, since 256 + 405 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2564053) and next prime (2564057).

It is not a de Polignac number, because 2564055 - 2¹ = 2564053 is a prime.

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

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁵ + 6⁴ + 4⁶ + 0 + 5⁷ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564053) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5022 + ... + 5508.

2^2564055 is an apocalyptic number.

2564055 is a deficient number, since it is larger than the sum of its proper divisors (2395977).

2564055 is a wasteful number, since it uses less digits than its factorization.

2564055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2564055 is about 1601.2666860957. The cubic root of 2564055 is about 136.8702663028.

The spelling of 2564055 in words is "two million, five hundred sixty-four thousand, fifty-five".