49748557 has 2 divisors, whose sum is σ = 49748558. Its totient is φ = 49748556.

The previous prime is 49748537. The next prime is 49748603. The reversal of 49748557 is 75584794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26842761 + 22905796 = 5181^2 + 4786^2 .

It is a cyclic number.

It is not a de Polignac number, because 49748557 - 2¹¹ = 49746509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49748557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49748537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24874278 + 24874279.

It is an arithmetic number, because the mean of its divisors is an integer number (24874279).

Almost surely, 2^49748557 is an apocalyptic number.

It is an amenable number.

49748557 is a deficient number, since it is larger than the sum of its proper divisors (1).

49748557 is an equidigital number, since it uses as much as digits as its factorization.

49748557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 49.

The square root of 49748557 is about 7053.2656975333. The cubic root of 49748557 is about 367.7845624845.

It can be divided in two parts, 49748 and 557, that added together give a palindrome (50305).

The spelling of 49748557 in words is "forty-nine million, seven hundred forty-eight thousand, five hundred fifty-seven".