2561030 has 16 divisors (see below), whose sum is σ = 4708800. Its totient is φ = 1002432.

The previous prime is 2561023. The next prime is 2561051. The reversal of 2561030 is 301652.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255 + ... + 3194.

It is an arithmetic number, because the mean of its divisors is an integer number (294300).

2^2561030 is an apocalyptic number.

2561030 is a deficient number, since it is larger than the sum of its proper divisors (2147770).

2561030 is a wasteful number, since it uses less digits than its factorization.

2561030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2561030 is about 1600.3218426304. The cubic root of 2561030 is about 136.8164198911.

Adding to 2561030 its reverse (301652), we get a palindrome (2862682).

The spelling of 2561030 in words is "two million, five hundred sixty-one thousand, thirty".