2565132156 has 36 divisors (see below), whose sum is σ = 6486493104. Its totient is φ = 854726400.

The previous prime is 2565132151. The next prime is 2565132197. The reversal of 2565132156 is 6512315652.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2565132156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565132151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97761 + ... + 121191.

It is an arithmetic number, because the mean of its divisors is an integer number (180180364).

Almost surely, 2^2565132156 is an apocalyptic number.

It is an amenable number.

2565132156 is an abundant number, since it is smaller than the sum of its proper divisors (3921360948).

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

2565132156 is a wasteful number, since it uses less digits than its factorization.

2565132156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26482 (or 26477 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 2565132156 is about 50647.1337392354. The cubic root of 2565132156 is about 1368.8942995675.

The spelling of 2565132156 in words is "two billion, five hundred sixty-five million, one hundred thirty-two thousand, one hundred fifty-six".