48211521 has 4 divisors (see below), whose sum is σ = 64282032. Its totient is φ = 32141012.

The previous prime is 48211511. The next prime is 48211523. The reversal of 48211521 is 12511284.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48211521 - 2⁵ = 48211489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48211491 and 48211500.

It is not an unprimeable number, because it can be changed into a prime (48211523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8035251 + ... + 8035256.

It is an arithmetic number, because the mean of its divisors is an integer number (16070508).

Almost surely, 2^48211521 is an apocalyptic number.

It is an amenable number.

48211521 is a deficient number, since it is larger than the sum of its proper divisors (16070511).

48211521 is a wasteful number, since it uses less digits than its factorization.

48211521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16070510.

The product of its digits is 640, while the sum is 24.

The square root of 48211521 is about 6943.4516632580. The cubic root of 48211521 is about 363.9571685102.

The spelling of 48211521 in words is "forty-eight million, two hundred eleven thousand, five hundred twenty-one".