2565270630 has 96 divisors (see below), whose sum is σ = 7246695456. Its totient is φ = 625830912.

The previous prime is 2565270613. The next prime is 2565270647. The reversal of 2565270630 is 360725652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2565270613) and next prime (2565270647).

It is a super-2 number, since 2×2565270630² = 13161226810281193800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122509 + ... + 141911.

It is an arithmetic number, because the mean of its divisors is an integer number (75486411).

Almost surely, 2^2565270630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2565270630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3623347728).

2565270630 is an abundant number, since it is smaller than the sum of its proper divisors (4681424826).

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

2565270630 is a wasteful number, since it uses less digits than its factorization.

2565270630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19542 (or 19539 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 2565270630 is about 50648.5007675449. The cubic root of 2565270630 is about 1368.9189315484.

The spelling of 2565270630 in words is "two billion, five hundred sixty-five million, two hundred seventy thousand, six hundred thirty".