2506503197 has 4 divisors (see below), whose sum is σ = 2734367136. Its totient is φ = 2278639260.

The previous prime is 2506503193. The next prime is 2506503229. The reversal of 2506503197 is 7913056052.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2506503197 - 2² = 2506503193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2506503197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506503191) 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, 113931953 + ... + 113931974.

It is an arithmetic number, because the mean of its divisors is an integer number (683591784).

Almost surely, 2^2506503197 is an apocalyptic number.

It is an amenable number.

2506503197 is a deficient number, since it is larger than the sum of its proper divisors (227863939).

2506503197 is a wasteful number, since it uses less digits than its factorization.

2506503197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227863938.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 2506503197 is about 50064.9897333456. The cubic root of 2506503197 is about 1358.3846155186.

The spelling of 2506503197 in words is "two billion, five hundred six million, five hundred three thousand, one hundred ninety-seven".