5121421501 has 16 divisors (see below), whose sum is σ = 5900540800. Its totient is φ = 4354233408.

The previous prime is 5121421499. The next prime is 5121421511. The reversal of 5121421501 is 1051241215.

It is not a de Polignac number, because 5121421501 - 2¹ = 5121421499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121421511) 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, 1645735 + ... + 1648843.

It is an arithmetic number, because the mean of its divisors is an integer number (368783800).

Almost surely, 2^5121421501 is an apocalyptic number.

It is an amenable number.

5121421501 is a deficient number, since it is larger than the sum of its proper divisors (779119299).

5121421501 is a wasteful number, since it uses less digits than its factorization.

5121421501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 5121421501 is about 71564.1076308508. The cubic root of 5121421501 is about 1723.7072440925.

Adding to 5121421501 its reverse (1051241215), we get a palindrome (6172662716).

The spelling of 5121421501 in words is "five billion, one hundred twenty-one million, four hundred twenty-one thousand, five hundred one".