48648991 has 2 divisors, whose sum is σ = 48648992. Its totient is φ = 48648990.

The previous prime is 48648967. The next prime is 48649009. The reversal of 48648991 is 19984684.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48648991 - 2⁵ = 48648959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48648961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24324495 + 24324496.

It is an arithmetic number, because the mean of its divisors is an integer number (24324496).

Almost surely, 2^48648991 is an apocalyptic number.

48648991 is a deficient number, since it is larger than the sum of its proper divisors (1).

48648991 is an equidigital number, since it uses as much as digits as its factorization.

48648991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 49.

The square root of 48648991 is about 6974.8828664000. The cubic root of 48648991 is about 365.0547012531.

The spelling of 48648991 in words is "forty-eight million, six hundred forty-eight thousand, nine hundred ninety-one".