48997521 has 16 divisors (see below), whose sum is σ = 75745920. Its totient is φ = 31244400.

The previous prime is 48997483. The next prime is 48997541. The reversal of 48997521 is 12579984.

48997521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48997521 - 2¹³ = 48989329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48997541) 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 in 15 ways as a sum of consecutive naturals, for example, 38830 + ... + 40071.

It is an arithmetic number, because the mean of its divisors is an integer number (4734120).

Almost surely, 2^48997521 is an apocalyptic number.

It is an amenable number.

48997521 is a deficient number, since it is larger than the sum of its proper divisors (26748399).

48997521 is a wasteful number, since it uses less digits than its factorization.

48997521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78933 (or 78927 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 48997521 is about 6999.8229263318. The cubic root of 48997521 is about 365.9243998650.

The spelling of 48997521 in words is "forty-eight million, nine hundred ninety-seven thousand, five hundred twenty-one".