49678249 has 2 divisors, whose sum is σ = 49678250. Its totient is φ = 49678248.

The previous prime is 49678241. The next prime is 49678253. The reversal of 49678249 is 94287694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48052624 + 1625625 = 6932^2 + 1275^2 .

It is a cyclic number.

It is not a de Polignac number, because 49678249 - 2³ = 49678241 is a prime.

It is not a weakly prime, because it can be changed into another prime (49678241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24839124 + 24839125.

It is an arithmetic number, because the mean of its divisors is an integer number (24839125).

Almost surely, 2^49678249 is an apocalyptic number.

It is an amenable number.

49678249 is a deficient number, since it is larger than the sum of its proper divisors (1).

49678249 is an equidigital number, since it uses as much as digits as its factorization.

49678249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 49678249 is about 7048.2798610725. The cubic root of 49678249 is about 367.6112215230.

The spelling of 49678249 in words is "forty-nine million, six hundred seventy-eight thousand, two hundred forty-nine".