2506804145 has 8 divisors (see below), whose sum is σ = 3009683304. Its totient is φ = 2004431104.

The previous prime is 2506804141. The next prime is 2506804169. The reversal of 2506804145 is 5414086052.

It can be written as a sum of positive squares in 4 ways, for example, as 164147344 + 2342656801 = 12812^2 + 48401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506804145 - 2² = 2506804141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2506804141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115544 + ... + 135513.

It is an arithmetic number, because the mean of its divisors is an integer number (376210413).

Almost surely, 2^2506804145 is an apocalyptic number.

It is an amenable number.

2506804145 is a deficient number, since it is larger than the sum of its proper divisors (502879159).

2506804145 is a wasteful number, since it uses less digits than its factorization.

2506804145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253059.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 2506804145 is about 50067.9952165053. The cubic root of 2506804145 is about 1358.4389790071.

The spelling of 2506804145 in words is "two billion, five hundred six million, eight hundred four thousand, one hundred forty-five".