2545812036 has 18 divisors (see below), whose sum is σ = 6435247182. Its totient is φ = 848604000.

The previous prime is 2545812029. The next prime is 2545812079. The reversal of 2545812036 is 6302185452.

2545812036 is a `hidden beast` number, since 2 + 54 + 581 + 20 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2494403136 + 51408900 = 49944^2 + 7170^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 70717001 = 2545812036 / (2 + 5 + 4 + 5 + 8 + 1 + 2 + 0 + 3 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35358465 + ... + 35358536.

Almost surely, 2^2545812036 is an apocalyptic number.

It is an amenable number.

2545812036 is an abundant number, since it is smaller than the sum of its proper divisors (3889435146).

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

2545812036 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 2545812036 = (6512348520)₉.

2545812036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70717011 (or 70717006 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 2545812036 is about 50456.0406294430. The cubic root of 2545812036 is about 1365.4488786557.

Adding to 2545812036 its reverse (6302185452), we get a palindrome (8847997488).

The spelling of 2545812036 in words is "two billion, five hundred forty-five million, eight hundred twelve thousand, thirty-six".