5106721525 has 6 divisors (see below), whose sum is σ = 6332334722. Its totient is φ = 4085377200.

The previous prime is 5106721489. The next prime is 5106721541. The reversal of 5106721525 is 5251276015.

It can be written as a sum of positive squares in 3 ways, for example, as 86007076 + 5020714449 = 9274^2 + 70857^2 .

It is not a de Polignac number, because 5106721525 - 2¹¹ = 5106719477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102134406 + ... + 102134455.

Almost surely, 2^5106721525 is an apocalyptic number.

It is an amenable number.

5106721525 is a deficient number, since it is larger than the sum of its proper divisors (1225613197).

5106721525 is a wasteful number, since it uses less digits than its factorization.

5106721525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204268871 (or 204268866 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 5106721525 is about 71461.3288779323. The cubic root of 5106721525 is about 1722.0564825628.

The spelling of 5106721525 in words is "five billion, one hundred six million, seven hundred twenty-one thousand, five hundred twenty-five".