251032553411987 has 2 divisors, whose sum is σ = 251032553411988. Its totient is φ = 251032553411986.

The previous prime is 251032553411971. The next prime is 251032553411993. The reversal of 251032553411987 is 789114355230152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251032553411987 - 2⁴ = 251032553411971 is a prime.

It is not a weakly prime, because it can be changed into another prime (251032553410987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125516276705993 + 125516276705994.

It is an arithmetic number, because the mean of its divisors is an integer number (125516276705994).

Almost surely, 2^{251032553411987} is an apocalyptic number.

251032553411987 is a deficient number, since it is larger than the sum of its proper divisors (1).

251032553411987 is an equidigital number, since it uses as much as digits as its factorization.

251032553411987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072000, while the sum is 56.

The spelling of 251032553411987 in words is "two hundred fifty-one trillion, thirty-two billion, five hundred fifty-three million, four hundred eleven thousand, nine hundred eighty-seven".