48571381 has 12 divisors (see below), whose sum is σ = 50391660. Its totient is φ = 46811520.

The previous prime is 48571361. The next prime is 48571387. The reversal of 48571381 is 18317584.

It can be written as a sum of positive squares in 2 ways, for example, as 35212356 + 13359025 = 5934^2 + 3655^2 .

It is not a de Polignac number, because 48571381 - 2⁹ = 48570869 is a prime.

It is a super-2 number, since 2×48571381² = 4718358104494322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48571381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48571387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201421 + ... + 201661.

It is an arithmetic number, because the mean of its divisors is an integer number (4199305).

Almost surely, 2^48571381 is an apocalyptic number.

It is an amenable number.

48571381 is a deficient number, since it is larger than the sum of its proper divisors (1820279).

48571381 is a wasteful number, since it uses less digits than its factorization.

48571381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 393 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 48571381 is about 6969.3171114536. The cubic root of 48571381 is about 364.8604733486.

The spelling of 48571381 in words is "forty-eight million, five hundred seventy-one thousand, three hundred eighty-one".