2925028665 has 56 divisors (see below), whose sum is σ = 5667554760. Its totient is φ = 1439990784.

The previous prime is 2925028661. The next prime is 2925028693. The reversal of 2925028665 is 5668205292.

2925028665 is a `hidden beast` number, since 2 + 9 + 2 + 502 + 86 + 65 = 666.

2925028665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 573554601 + 2351474064 = 23949^2 + 48492^2 .

It is not a de Polignac number, because 2925028665 - 2² = 2925028661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2925028665.

It is not an unprimeable number, because it can be changed into a prime (2925028661) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 16521 + ... + 78249.

It is an arithmetic number, because the mean of its divisors is an integer number (101206335).

Almost surely, 2^2925028665 is an apocalyptic number.

It is an amenable number.

2925028665 is a deficient number, since it is larger than the sum of its proper divisors (2742526095).

2925028665 is an equidigital number, since it uses as much as digits as its factorization.

2925028665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61765 (or 61750 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2925028665 is about 54083.5341393293. The cubic root of 2925028665 is about 1430.1339247319.

The spelling of 2925028665 in words is "two billion, nine hundred twenty-five million, twenty-eight thousand, six hundred sixty-five".