48511521 has 16 divisors (see below), whose sum is σ = 72006720. Its totient is φ = 32279040.

The previous prime is 48511499. The next prime is 48511537. The reversal of 48511521 is 12511584.

It is not a de Polignac number, because 48511521 - 2⁶ = 48511457 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (48511321) 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 in 15 ways as a sum of consecutive naturals, for example, 15906 + ... + 18708.

It is an arithmetic number, because the mean of its divisors is an integer number (4500420).

Almost surely, 2^48511521 is an apocalyptic number.

It is an amenable number.

48511521 is a deficient number, since it is larger than the sum of its proper divisors (23495199).

48511521 is a wasteful number, since it uses less digits than its factorization.

48511521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453 (or 3447 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 48511521 is about 6965.0212490702. The cubic root of 48511521 is about 364.7105254724.

The spelling of 48511521 in words is "forty-eight million, five hundred eleven thousand, five hundred twenty-one".