49224157 has 2 divisors, whose sum is σ = 49224158. Its totient is φ = 49224156.

The previous prime is 49224151. The next prime is 49224179. The reversal of 49224157 is 75142294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28238596 + 20985561 = 5314^2 + 4581^2 .

It is a cyclic number.

It is not a de Polignac number, because 49224157 - 2¹¹ = 49222109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49224151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24612078 + 24612079.

It is an arithmetic number, because the mean of its divisors is an integer number (24612079).

Almost surely, 2^49224157 is an apocalyptic number.

It is an amenable number.

49224157 is a deficient number, since it is larger than the sum of its proper divisors (1).

49224157 is an equidigital number, since it uses as much as digits as its factorization.

49224157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 49224157 is about 7015.9929446943. The cubic root of 49224157 is about 366.4877215905.

It can be divided in two parts, 492 and 24157, that added together give a square (24649 = 157²).

The spelling of 49224157 in words is "forty-nine million, two hundred twenty-four thousand, one hundred fifty-seven".