2565026240 has 112 divisors (see below), whose sum is σ = 7284183552. Its totient is φ = 841184256.

The previous prime is 2565026183. The next prime is 2565026257. The reversal of 2565026240 is 426205652.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×2565026240² = 13158719223777075200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2565026197 and 2565026206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26627 + ... + 76413.

Almost surely, 2^2565026240 is an apocalyptic number.

2565026240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2565026240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3642091776).

2565026240 is an abundant number, since it is smaller than the sum of its proper divisors (4719157312).

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

2565026240 is a wasteful number, since it uses less digits than its factorization.

2565026240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49834 (or 49824 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2565026240 is about 50646.0881016491. The cubic root of 2565026240 is about 1368.8754584585.

The spelling of 2565026240 in words is "two billion, five hundred sixty-five million, twenty-six thousand, two hundred forty".