3251251987 has 2 divisors, whose sum is σ = 3251251988. Its totient is φ = 3251251986.

The previous prime is 3251251961. The next prime is 3251252033. The reversal of 3251251987 is 7891521523.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3251251987 is a prime.

It is not a weakly prime, because it can be changed into another prime (3251257987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625625993 + 1625625994.

It is an arithmetic number, because the mean of its divisors is an integer number (1625625994).

Almost surely, 2^3251251987 is an apocalyptic number.

3251251987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3251251987 is an equidigital number, since it uses as much as digits as its factorization.

3251251987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 3251251987 is about 57019.7508500344. The cubic root of 3251251987 is about 1481.4382152497.

The spelling of 3251251987 in words is "three billion, two hundred fifty-one million, two hundred fifty-one thousand, nine hundred eighty-seven".