48455821 has 4 divisors (see below), whose sum is σ = 50018944. Its totient is φ = 46892700.

The previous prime is 48455819. The next prime is 48455851. The reversal of 48455821 is 12855484.

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 48455821 - 2¹ = 48455819 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 (48455851) 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, 781515 + ... + 781576.

It is an arithmetic number, because the mean of its divisors is an integer number (12504736).

Almost surely, 2^48455821 is an apocalyptic number.

It is an amenable number.

48455821 is a deficient number, since it is larger than the sum of its proper divisors (1563123).

48455821 is a wasteful number, since it uses less digits than its factorization.

48455821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563122.

The product of its digits is 51200, while the sum is 37.

The square root of 48455821 is about 6961.0215485947. The cubic root of 48455821 is about 364.5708874670.

The spelling of 48455821 in words is "forty-eight million, four hundred fifty-five thousand, eight hundred twenty-one".