48175821 has 6 divisors (see below), whose sum is σ = 69587310. Its totient is φ = 32117208.

The previous prime is 48175817. The next prime is 48175837. The reversal of 48175821 is 12857184.

It can be written as a sum of positive squares in only one way, i.e., 47073321 + 1102500 = 6861^2 + 1050^2 .

It is not a de Polignac number, because 48175821 - 2² = 48175817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48175021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2676426 + ... + 2676443.

It is an arithmetic number, because the mean of its divisors is an integer number (11597885).

Almost surely, 2^48175821 is an apocalyptic number.

It is an amenable number.

48175821 is a deficient number, since it is larger than the sum of its proper divisors (21411489).

48175821 is a wasteful number, since it uses less digits than its factorization.

48175821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352875 (or 5352872 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 48175821 is about 6940.8804196586. The cubic root of 48175821 is about 363.8673111546.

The spelling of 48175821 in words is "forty-eight million, one hundred seventy-five thousand, eight hundred twenty-one".