49742257 has 2 divisors, whose sum is σ = 49742258. Its totient is φ = 49742256.

The previous prime is 49742243. The next prime is 49742263. The reversal of 49742257 is 75224794.

49742257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 2187441 = 6896^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 49742257 - 2⁷ = 49742129 is a prime.

It is equal to p_2986555 and since 49742257 and 2986555 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (49742227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24871128 + 24871129.

It is an arithmetic number, because the mean of its divisors is an integer number (24871129).

Almost surely, 2^49742257 is an apocalyptic number.

It is an amenable number.

49742257 is a deficient number, since it is larger than the sum of its proper divisors (1).

49742257 is an equidigital number, since it uses as much as digits as its factorization.

49742257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 49742257 is about 7052.8190817573. The cubic root of 49742257 is about 367.7690368043.

The spelling of 49742257 in words is "forty-nine million, seven hundred forty-two thousand, two hundred fifty-seven".