49448557 has 4 divisors (see below), whose sum is σ = 49631296. Its totient is φ = 49265820.

The previous prime is 49448543. The next prime is 49448561. The reversal of 49448557 is 75584494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75584494 = 2 ⋅37792247.

It is a cyclic number.

It is not a de Polignac number, because 49448557 - 2⁷ = 49448429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49448527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90963 + ... + 91504.

It is an arithmetic number, because the mean of its divisors is an integer number (12407824).

Almost surely, 2^49448557 is an apocalyptic number.

It is an amenable number.

49448557 is a deficient number, since it is larger than the sum of its proper divisors (182739).

49448557 is a wasteful number, since it uses less digits than its factorization.

49448557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182738.

The product of its digits is 806400, while the sum is 46.

The square root of 49448557 is about 7031.9667945746. The cubic root of 49448557 is about 367.0437845437.

It can be divided in two parts, 49448 and 557, that added together give a palindrome (50005).

The spelling of 49448557 in words is "forty-nine million, four hundred forty-eight thousand, five hundred fifty-seven".