5021042251 has 4 divisors (see below), whose sum is σ = 5022547552. Its totient is φ = 5019536952.

The previous prime is 5021042237. The next prime is 5021042269. The reversal of 5021042251 is 1522401205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5021042251 - 2⁵ = 5021042219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5021042051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747636 + ... + 754321.

It is an arithmetic number, because the mean of its divisors is an integer number (1255636888).

Almost surely, 2^5021042251 is an apocalyptic number.

5021042251 is a deficient number, since it is larger than the sum of its proper divisors (1505301).

5021042251 is a wasteful number, since it uses less digits than its factorization.

5021042251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505300.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 5021042251 is about 70859.3130858605. The cubic root of 5021042251 is about 1712.3713723411.

Adding to 5021042251 its reverse (1522401205), we get a palindrome (6543443456).

The spelling of 5021042251 in words is "five billion, twenty-one million, forty-two thousand, two hundred fifty-one".