48306521 has 4 divisors (see below), whose sum is σ = 48337332. Its totient is φ = 48275712.

The previous prime is 48306499. The next prime is 48306527. The reversal of 48306521 is 12560384.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6056521 + 42250000 = 2461^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 48306521 - 2⁶ = 48306457 is a prime.

It is a super-2 number, since 2×48306521² = 4667039942246882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48306527) 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, 12920 + ... + 16233.

It is an arithmetic number, because the mean of its divisors is an integer number (12084333).

Almost surely, 2^48306521 is an apocalyptic number.

It is an amenable number.

48306521 is a deficient number, since it is larger than the sum of its proper divisors (30811).

48306521 is a wasteful number, since it uses less digits than its factorization.

48306521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30810.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 48306521 is about 6950.2892745554. The cubic root of 48306521 is about 364.1960688441.

The spelling of 48306521 in words is "forty-eight million, three hundred six thousand, five hundred twenty-one".