2530728164 has 12 divisors (see below), whose sum is σ = 4512336444. Its totient is φ = 1241489184.

The previous prime is 2530728143. The next prime is 2530728169. The reversal of 2530728164 is 4618270352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1024512064 + 1506216100 = 32008^2 + 38810^2 .

It is not an unprimeable number, because it can be changed into a prime (2530728169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5968487 + ... + 5968910.

It is an arithmetic number, because the mean of its divisors is an integer number (376028037).

Almost surely, 2^2530728164 is an apocalyptic number.

It is an amenable number.

2530728164 is a deficient number, since it is larger than the sum of its proper divisors (1981608280).

2530728164 is a wasteful number, since it uses less digits than its factorization.

2530728164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11937454 (or 11937452 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 2530728164 is about 50306.3431785694. The cubic root of 2530728164 is about 1362.7467849588.

The spelling of 2530728164 in words is "two billion, five hundred thirty million, seven hundred twenty-eight thousand, one hundred sixty-four".