2500789 has 4 divisors (see below), whose sum is σ = 2511756. Its totient is φ = 2489824.

The previous prime is 2500783. The next prime is 2500807. The reversal of 2500789 is 9870052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 339889 + 2160900 = 583^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500789 - 2³ = 2500781 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 0 + 0 + 7⁵ + 8 + 9⁴ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2500789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134 + ... + 5599.

It is an arithmetic number, because the mean of its divisors is an integer number (627939).

2^2500789 is an apocalyptic number.

It is an amenable number.

2500789 is a deficient number, since it is larger than the sum of its proper divisors (10967).

2500789 is a wasteful number, since it uses less digits than its factorization.

2500789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10966.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2500789 is about 1581.3883141088. The cubic root of 2500789 is about 135.7351571646.

The spelling of 2500789 in words is "two million, five hundred thousand, seven hundred eighty-nine".