2581203 has 8 divisors (see below), whose sum is σ = 3560400. Its totient is φ = 1661408.

The previous prime is 2581181. The next prime is 2581211. The reversal of 2581203 is 3021852.

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 2581203 - 2⁵ = 2581171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2581203.

It is not an unprimeable number, because it can be changed into a prime (2581213) 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, 14748 + ... + 14921.

It is an arithmetic number, because the mean of its divisors is an integer number (445050).

2^2581203 is an apocalyptic number.

2581203 is a deficient number, since it is larger than the sum of its proper divisors (979197).

2581203 is a wasteful number, since it uses less digits than its factorization.

2581203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29701.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2581203 is about 1606.6122743213. The cubic root of 2581203 is about 137.1747109478.

The spelling of 2581203 in words is "two million, five hundred eighty-one thousand, two hundred three".