2500161003 has 12 divisors (see below), whose sum is σ = 3708948048. Its totient is φ = 1621725840.

The previous prime is 2500160987. The next prime is 2500161007. The reversal of 2500161003 is 3001610052.

2500161003 is a `hidden beast` number, since 2 + 50 + 0 + 1 + 610 + 0 + 3 = 666.

It is not a de Polignac number, because 2500161003 - 2⁴ = 2500160987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2500161007) 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 11 ways as a sum of consecutive naturals, for example, 3753663 + ... + 3754328.

It is an arithmetic number, because the mean of its divisors is an integer number (309079004).

Almost surely, 2^2500161003 is an apocalyptic number.

2500161003 is a deficient number, since it is larger than the sum of its proper divisors (1208787045).

2500161003 is a wasteful number, since it uses less digits than its factorization.

2500161003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508034 (or 7508031 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2500161003 is about 50001.6100040789. The cubic root of 2500161003 is about 1357.2379429640.

Adding to 2500161003 its reverse (3001610052), we get a palindrome (5501771055).

It can be divided in two parts, 2 and 500161003, that added together give a palindrome (500161005).

The spelling of 2500161003 in words is "two billion, five hundred million, one hundred sixty-one thousand, three".