2565118132 has 6 divisors (see below), whose sum is σ = 4488956738. Its totient is φ = 1282559064.

The previous prime is 2565118111. The next prime is 2565118139. The reversal of 2565118132 is 2318115652.

It can be written as a sum of positive squares in only one way, i.e., 1911088656 + 654029476 = 43716^2 + 25574^2 .

It is a super-2 number, since 2×2565118132² = 13159662062230338848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565118139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320639763 + ... + 320639770.

Almost surely, 2^2565118132 is an apocalyptic number.

It is an amenable number.

2565118132 is a deficient number, since it is larger than the sum of its proper divisors (1923838606).

2565118132 is a wasteful number, since it uses less digits than its factorization.

2565118132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641279537 (or 641279535 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 2565118132 is about 50646.9952909351. The cubic root of 2565118132 is about 1368.8918049061.

The spelling of 2565118132 in words is "two billion, five hundred sixty-five million, one hundred eighteen thousand, one hundred thirty-two".