57048737 has 2 divisors, whose sum is σ = 57048738. Its totient is φ = 57048736.

The previous prime is 57048731. The next prime is 57048749. The reversal of 57048737 is 73784075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56415121 + 633616 = 7511^2 + 796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57048737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57048694 and 57048703.

It is not a weakly prime, because it can be changed into another prime (57048731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28524368 + 28524369.

It is an arithmetic number, because the mean of its divisors is an integer number (28524369).

Almost surely, 2^57048737 is an apocalyptic number.

It is an amenable number.

57048737 is a deficient number, since it is larger than the sum of its proper divisors (1).

57048737 is an equidigital number, since it uses as much as digits as its factorization.

57048737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 57048737 is about 7553.0614322935. The cubic root of 57048737 is about 384.9597686639.

It can be divided in two parts, 5704 and 8737, that added together give a palindrome (14441).

The spelling of 57048737 in words is "fifty-seven million, forty-eight thousand, seven hundred thirty-seven".