4991111025 has 12 divisors (see below), whose sum is σ = 8251970352. Its totient is φ = 2661925840.

The previous prime is 4991110991. The next prime is 4991111101. The reversal of 4991111025 is 5201111994.

It is not a de Polignac number, because 4991111025 - 2¹⁰ = 4991110001 is a prime.

It is a super-2 number, since 2×4991111025² = 49822378527753101250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33273999 + ... + 33274148.

It is an arithmetic number, because the mean of its divisors is an integer number (687664196).

Almost surely, 2^4991111025 is an apocalyptic number.

It is an amenable number.

4991111025 is a deficient number, since it is larger than the sum of its proper divisors (3260859327).

4991111025 is a wasteful number, since it uses less digits than its factorization.

4991111025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66548160 (or 66548155 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 4991111025 is about 70647.7956131683. The cubic root of 4991111025 is about 1708.9620166898.

The spelling of 4991111025 in words is "four billion, nine hundred ninety-one million, one hundred eleven thousand, twenty-five".