8251501487 has 2 divisors, whose sum is σ = 8251501488. Its totient is φ = 8251501486.

The previous prime is 8251501403. The next prime is 8251501543. The reversal of 8251501487 is 7841051528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8251501487 - 2¹⁰ = 8251500463 is a prime.

It is a super-2 number, since 2×8251501487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8251507487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4125750743 + 4125750744.

It is an arithmetic number, because the mean of its divisors is an integer number (4125750744).

Almost surely, 2^8251501487 is an apocalyptic number.

8251501487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8251501487 is an equidigital number, since it uses as much as digits as its factorization.

8251501487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 8251501487 is about 90837.7756607899. The cubic root of 8251501487 is about 2020.7425860945.

The spelling of 8251501487 in words is "eight billion, two hundred fifty-one million, five hundred one thousand, four hundred eighty-seven".