48753781 has 4 divisors (see below), whose sum is σ = 48927564. Its totient is φ = 48580000.

The previous prime is 48753769. The next prime is 48753893. The reversal of 48753781 is 18735784.

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 11115556 + 37638225 = 3334^2 + 6135^2 .

It is a cyclic number.

It is not a de Polignac number, because 48753781 - 2¹³ = 48745589 is a prime.

It is a super-2 number, since 2×48753781² = 4753862323591922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48753181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86470 + ... + 87031.

It is an arithmetic number, because the mean of its divisors is an integer number (12231891).

Almost surely, 2^48753781 is an apocalyptic number.

It is an amenable number.

48753781 is a deficient number, since it is larger than the sum of its proper divisors (173783).

48753781 is a wasteful number, since it uses less digits than its factorization.

48753781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173782.

The product of its digits is 188160, while the sum is 43.

The square root of 48753781 is about 6982.3907796685. The cubic root of 48753781 is about 365.3166227424.

The spelling of 48753781 in words is "forty-eight million, seven hundred fifty-three thousand, seven hundred eighty-one".