6499925252 has 12 divisors (see below), whose sum is σ = 11502677340. Its totient is φ = 3213446016.

The previous prime is 6499925233. The next prime is 6499925269. The reversal of 6499925252 is 2525299946.

It can be written as a sum of positive squares in 2 ways, for example, as 4417463296 + 2082461956 = 66464^2 + 45634^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6499925194 and 6499925203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9128753 + ... + 9129464.

It is an arithmetic number, because the mean of its divisors is an integer number (958556445).

Almost surely, 2^6499925252 is an apocalyptic number.

It is an amenable number.

6499925252 is a deficient number, since it is larger than the sum of its proper divisors (5002752088).

6499925252 is a wasteful number, since it uses less digits than its factorization.

6499925252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18258310 (or 18258308 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 53.

The square root of 6499925252 is about 80622.1139142357. The cubic root of 6499925252 is about 1866.2484245929.

The spelling of 6499925252 in words is "six billion, four hundred ninety-nine million, nine hundred twenty-five thousand, two hundred fifty-two".