2265715540 has 48 divisors (see below), whose sum is σ = 5236539840. Its totient is φ = 816596480.

The previous prime is 2265715531. The next prime is 2265715547. The reversal of 2265715540 is 455175622.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2265715540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265715547) 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, 20710 + ... + 70429.

It is an arithmetic number, because the mean of its divisors is an integer number (109094580).

Almost surely, 2^2265715540 is an apocalyptic number.

2265715540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265715540 is an abundant number, since it is smaller than the sum of its proper divisors (2970824300).

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

2265715540 is a wasteful number, since it uses less digits than its factorization.

2265715540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91272 (or 91270 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 2265715540 is about 47599.5329809022. The cubic root of 2265715540 is about 1313.4144634247.

The spelling of 2265715540 in words is "two billion, two hundred sixty-five million, seven hundred fifteen thousand, five hundred forty".