49748157 has 6 divisors (see below), whose sum is σ = 71858462. Its totient is φ = 33165432.

The previous prime is 49748143. The next prime is 49748159. The reversal of 49748157 is 75184794.

It is a happy number.

49748157 is a `hidden beast` number, since 497 + 4 + 8 + 157 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48358116 + 1390041 = 6954^2 + 1179^2 .

It is not a de Polignac number, because 49748157 - 2¹⁶ = 49682621 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 (49748159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2763778 + ... + 2763795.

Almost surely, 2^49748157 is an apocalyptic number.

It is an amenable number.

49748157 is a deficient number, since it is larger than the sum of its proper divisors (22110305).

49748157 is a wasteful number, since it uses less digits than its factorization.

49748157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527579 (or 5527576 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 49748157 is about 7053.2373418169. The cubic root of 49748157 is about 367.7835767660.

It can be divided in two parts, 4974 and 8157, that added together give a palindrome (13131).

The spelling of 49748157 in words is "forty-nine million, seven hundred forty-eight thousand, one hundred fifty-seven".