48249991 has 2 divisors, whose sum is σ = 48249992. Its totient is φ = 48249990.

The previous prime is 48249977. The next prime is 48250001. The reversal of 48249991 is 19994284.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48249991 - 2¹¹ = 48247943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48249931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24124995 + 24124996.

It is an arithmetic number, because the mean of its divisors is an integer number (24124996).

Almost surely, 2^48249991 is an apocalyptic number.

48249991 is a deficient number, since it is larger than the sum of its proper divisors (1).

48249991 is an equidigital number, since it uses as much as digits as its factorization.

48249991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 48249991 is about 6946.2213468907. The cubic root of 48249991 is about 364.0539483498.

The spelling of 48249991 in words is "forty-eight million, two hundred forty-nine thousand, nine hundred ninety-one".