2506731650 has 24 divisors (see below), whose sum is σ = 4664826804. Its totient is φ = 1002196800.

The previous prime is 2506731631. The next prime is 2506731653. The reversal of 2506731650 is 561376052.

It can be written as a sum of positive squares in 6 ways, for example, as 493683961 + 2013047689 = 22219^2 + 44867^2 .

It is a super-2 number, since 2×2506731650² = 12567407130223445000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2506731650.

It is not an unprimeable number, because it can be changed into a prime (2506731653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99764 + ... + 122336.

Almost surely, 2^2506731650 is an apocalyptic number.

2506731650 is a deficient number, since it is larger than the sum of its proper divisors (2158095154).

2506731650 is a wasteful number, since it uses less digits than its factorization.

2506731650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24806 (or 24801 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 2506731650 is about 50067.2712457949. The cubic root of 2506731650 is about 1358.4258838499.

The spelling of 2506731650 in words is "two billion, five hundred six million, seven hundred thirty-one thousand, six hundred fifty".