2564451 has 12 divisors (see below), whose sum is σ = 3749928. Its totient is φ = 1688544.

The previous prime is 2564447. The next prime is 2564459. The reversal of 2564451 is 1544652.

It is not a de Polignac number, because 2564451 - 2² = 2564447 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2564459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (312494).

2^2564451 is an apocalyptic number.

2564451 is a deficient number, since it is larger than the sum of its proper divisors (1185477).

2564451 is a wasteful number, since it uses less digits than its factorization.

2564451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522 (or 3519 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2564451 is about 1601.3903334290. The cubic root of 2564451 is about 136.8773121521.

It can be divided in two parts, 2 and 564451, that added together give a triangular number (564453 = T₁₀₆₂).

The spelling of 2564451 in words is "two million, five hundred sixty-four thousand, four hundred fifty-one".