2564250 has 64 divisors (see below), whose sum is σ = 6918912. Its totient is φ = 628800.

The previous prime is 2564249. The next prime is 2564251. The reversal of 2564250 is 524652.

It is an interprime number because it is at equal distance from previous prime (2564249) and next prime (2564251).

It is a d-powerful number, because it can be written as 2¹¹ + 5⁷ + 6⁶ + 4⁹ + 2²¹ + 5⁷ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 2564250.

It is not an unprimeable number, because it can be changed into a prime (2564251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9619 + ... + 9881.

It is an arithmetic number, because the mean of its divisors is an integer number (108108).

2^2564250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2564250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3459456).

2564250 is an abundant number, since it is smaller than the sum of its proper divisors (4354662).

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

2564250 is a wasteful number, since it uses less digits than its factorization.

2564250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2564250 is about 1601.3275742333. The cubic root of 2564250 is about 136.8737359405.

The spelling of 2564250 in words is "two million, five hundred sixty-four thousand, two hundred fifty".