48510221 has 4 divisors (see below), whose sum is σ = 48529344. Its totient is φ = 48491100.

The previous prime is 48510181. The next prime is 48510223. The reversal of 48510221 is 12201584.

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 a de Polignac number, because none of the positive numbers 2^k-48510221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48510223) 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, 5045 + ... + 11066.

It is an arithmetic number, because the mean of its divisors is an integer number (12132336).

Almost surely, 2^48510221 is an apocalyptic number.

It is an amenable number.

48510221 is a deficient number, since it is larger than the sum of its proper divisors (19123).

48510221 is a wasteful number, since it uses less digits than its factorization.

48510221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19122.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 48510221 is about 6964.9279249681. The cubic root of 48510221 is about 364.7072676352.

The spelling of 48510221 in words is "forty-eight million, five hundred ten thousand, two hundred twenty-one".