2565440300 has 18 divisors (see below), whose sum is σ = 5567005668. Its totient is φ = 1026176080.

The previous prime is 2565440291. The next prime is 2565440303. The reversal of 2565440300 is 30445652.

It is not an unprimeable number, because it can be changed into a prime (2565440303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12827102 + ... + 12827301.

Almost surely, 2^2565440300 is an apocalyptic number.

2565440300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2565440300 is an abundant number, since it is smaller than the sum of its proper divisors (3001565368).

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

2565440300 is a wasteful number, since it uses less digits than its factorization.

2565440300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25654417 (or 25654410 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2565440300 is about 50650.1757153912. The cubic root of 2565440300 is about 1368.9491115161.

Adding to 2565440300 its reverse (30445652), we get a palindrome (2595885952).

The spelling of 2565440300 in words is "two billion, five hundred sixty-five million, four hundred forty thousand, three hundred".