48821445 has 24 divisors (see below), whose sum is σ = 84871800. Its totient is φ = 25961856.

The previous prime is 48821441. The next prime is 48821449. The reversal of 48821445 is 54412884.

It is an interprime number because it is at equal distance from previous prime (48821441) and next prime (48821449).

It can be written as a sum of positive squares in 4 ways, for example, as 2934369 + 45887076 = 1713^2 + 6774^2 .

It is not a de Polignac number, because 48821445 - 2² = 48821441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48821441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16111 + ... + 18899.

It is an arithmetic number, because the mean of its divisors is an integer number (3536325).

Almost surely, 2^48821445 is an apocalyptic number.

48821445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

48821445 is a deficient number, since it is larger than the sum of its proper divisors (36050355).

48821445 is a wasteful number, since it uses less digits than its factorization.

48821445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189 (or 3186 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 48821445 is about 6987.2344314471. The cubic root of 48821445 is about 365.4855488356.

The spelling of 48821445 in words is "forty-eight million, eight hundred twenty-one thousand, four hundred forty-five".