5245040191 has 16 divisors (see below), whose sum is σ = 5458834368. Its totient is φ = 5035392000.

The previous prime is 5245040149. The next prime is 5245040239. The reversal of 5245040191 is 1910405425.

It is a cyclic number.

It is not a de Polignac number, because 5245040191 - 2²¹ = 5242943039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5245040791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159951 + ... + 1164463.

It is an arithmetic number, because the mean of its divisors is an integer number (341177148).

Almost surely, 2^5245040191 is an apocalyptic number.

5245040191 is a deficient number, since it is larger than the sum of its proper divisors (213794177).

5245040191 is a wasteful number, since it uses less digits than its factorization.

5245040191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5245040191 is about 72422.6497098801. The cubic root of 5245040191 is about 1737.4658348164.

The spelling of 5245040191 in words is "five billion, two hundred forty-five million, forty thousand, one hundred ninety-one".