48449857 has 2 divisors, whose sum is σ = 48449858. Its totient is φ = 48449856.

The previous prime is 48449837. The next prime is 48449887. The reversal of 48449857 is 75894484.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 9024016 = 6279^2 + 3004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48449857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48449857.

It is not a weakly prime, because it can be changed into another prime (48449827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24224928 + 24224929.

It is an arithmetic number, because the mean of its divisors is an integer number (24224929).

Almost surely, 2^48449857 is an apocalyptic number.

It is an amenable number.

48449857 is a deficient number, since it is larger than the sum of its proper divisors (1).

48449857 is an equidigital number, since it uses as much as digits as its factorization.

48449857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 49.

The square root of 48449857 is about 6960.5931500124. The cubic root of 48449857 is about 364.5559295807. Note that the first 3 decimals are identical.

The spelling of 48449857 in words is "forty-eight million, four hundred forty-nine thousand, eight hundred fifty-seven".