48071521 has 2 divisors, whose sum is σ = 48071522. Its totient is φ = 48071520.

The previous prime is 48071509. The next prime is 48071533. The reversal of 48071521 is 12517084.

48071521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (48071509) and next prime (48071533).

It can be written as a sum of positive squares in only one way, i.e., 46771921 + 1299600 = 6839^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 48071521 - 2¹³ = 48063329 is a prime.

It is a super-3 number, since 3×48071521³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is equal to p_2892142 and since 48071521 and 2892142 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48071521.

It is not a weakly prime, because it can be changed into another prime (48071561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24035760 + 24035761.

It is an arithmetic number, because the mean of its divisors is an integer number (24035761).

Almost surely, 2^48071521 is an apocalyptic number.

It is an amenable number.

48071521 is a deficient number, since it is larger than the sum of its proper divisors (1).

48071521 is an equidigital number, since it uses as much as digits as its factorization.

48071521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 48071521 is about 6933.3628925652. The cubic root of 48071521 is about 363.6045321587.

It can be divided in two parts, 4807 and 1521, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 48071521 in words is "forty-eight million, seventy-one thousand, five hundred twenty-one".