6249920995 has 4 divisors (see below), whose sum is σ = 7499905200. Its totient is φ = 4999936792.

The previous prime is 6249920951. The next prime is 6249921017. The reversal of 6249920995 is 5990299426.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5990299426 = 2 ⋅2995149713.

It is a cyclic number.

It is not a de Polignac number, because 6249920995 - 2⁹ = 6249920483 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 624992095 + ... + 624992104.

It is an arithmetic number, because the mean of its divisors is an integer number (1874976300).

Almost surely, 2^6249920995 is an apocalyptic number.

6249920995 is a deficient number, since it is larger than the sum of its proper divisors (1249984205).

6249920995 is a wasteful number, since it uses less digits than its factorization.

6249920995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249984204.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 6249920995 is about 79056.4418311373. The cubic root of 6249920995 is about 1842.0079877699.

The spelling of 6249920995 in words is "six billion, two hundred forty-nine million, nine hundred twenty thousand, nine hundred ninety-five".