6491025050 has 24 divisors (see below), whose sum is σ = 12489630300. Its totient is φ = 2506878080.

The previous prime is 6491025049. The next prime is 6491025061. The reversal of 6491025050 is 505201946.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1950017281 + 4541007769 = 44159^2 + 67387^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6491024998 and 6491025016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2236835 + ... + 2239734.

Almost surely, 2^6491025050 is an apocalyptic number.

6491025050 is a deficient number, since it is larger than the sum of its proper divisors (5998605250).

6491025050 is a wasteful number, since it uses less digits than its factorization.

6491025050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476610 (or 4476605 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 6491025050 is about 80566.8979792570. The cubic root of 6491025050 is about 1865.3962314616.

Adding to 6491025050 its reverse (505201946), we get a palindrome (6996226996).

The spelling of 6491025050 in words is "six billion, four hundred ninety-one million, twenty-five thousand, fifty".