48511987 has 2 divisors, whose sum is σ = 48511988. Its totient is φ = 48511986.

The previous prime is 48511963. The next prime is 48512003. The reversal of 48511987 is 78911584.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48511987 is a prime.

It is not a weakly prime, because it can be changed into another prime (48511927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24255993 + 24255994.

It is an arithmetic number, because the mean of its divisors is an integer number (24255994).

Almost surely, 2^48511987 is an apocalyptic number.

48511987 is a deficient number, since it is larger than the sum of its proper divisors (1).

48511987 is an equidigital number, since it uses as much as digits as its factorization.

48511987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 43.

The square root of 48511987 is about 6965.0547018670. The cubic root of 48511987 is about 364.7116932676.

The spelling of 48511987 in words is "forty-eight million, five hundred eleven thousand, nine hundred eighty-seven".