2564630203 has 16 divisors (see below), whose sum is σ = 2837318400. Its totient is φ = 2307238560.

The previous prime is 2564630177. The next prime is 2564630213. The reversal of 2564630203 is 3020364652.

It is a happy number.

It is not a de Polignac number, because 2564630203 - 2⁵ = 2564630171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564630213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39633 + ... + 81853.

It is an arithmetic number, because the mean of its divisors is an integer number (177332400).

Almost surely, 2^2564630203 is an apocalyptic number.

2564630203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2564630203 is a deficient number, since it is larger than the sum of its proper divisors (272688197).

2564630203 is a wasteful number, since it uses less digits than its factorization.

2564630203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42402.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 2564630203 is about 50642.1781028423. The cubic root of 2564630203 is about 1368.8050039182.

Adding to 2564630203 its reverse (3020364652), we get a palindrome (5584994855).

The spelling of 2564630203 in words is "two billion, five hundred sixty-four million, six hundred thirty thousand, two hundred three".