4250000991 has 8 divisors (see below), whose sum is σ = 5787235584. Its totient is φ = 2773050200.

The previous prime is 4250000981. The next prime is 4250001013. The reversal of 4250000991 is 1990000524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4250000991 - 2¹⁹ = 4249476703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4250000981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15070785 + ... + 15071066.

It is an arithmetic number, because the mean of its divisors is an integer number (723404448).

Almost surely, 2^4250000991 is an apocalyptic number.

4250000991 is a deficient number, since it is larger than the sum of its proper divisors (1537234593).

4250000991 is a wasteful number, since it uses less digits than its factorization.

4250000991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30141901.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 4250000991 is about 65192.0316526491. The cubic root of 4250000991 is about 1619.8060265389.

The spelling of 4250000991 in words is "four billion, two hundred fifty million, nine hundred ninety-one", and thus it is an aban number.