48388257 has 6 divisors (see below), whose sum is σ = 69894162. Its totient is φ = 32258832.

The previous prime is 48388237. The next prime is 48388279. The reversal of 48388257 is 75288384.

Added to its reverse (75288384) it gives a square (123676641 = 11121²).

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 8433216 = 6321^2 + 2904^2 .

It is not a de Polignac number, because 48388257 - 2⁷ = 48388129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48388237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2688228 + ... + 2688245.

It is an arithmetic number, because the mean of its divisors is an integer number (11649027).

Almost surely, 2^48388257 is an apocalyptic number.

It is an amenable number.

48388257 is a deficient number, since it is larger than the sum of its proper divisors (21505905).

48388257 is a wasteful number, since it uses less digits than its factorization.

48388257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376479 (or 5376476 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 48388257 is about 6956.1668323869. The cubic root of 48388257 is about 364.4013631166.

Adding to 48388257 its reverse (75288384), we get a square (123676641 = 11121²).

The spelling of 48388257 in words is "forty-eight million, three hundred eighty-eight thousand, two hundred fifty-seven".