49678451 has 2 divisors, whose sum is σ = 49678452. Its totient is φ = 49678450.

The previous prime is 49678417. The next prime is 49678469. The reversal of 49678451 is 15487694.

49678451 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49678451 is a prime.

It is not a weakly prime, because it can be changed into another prime (49678481) 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, 24839225 + 24839226.

It is an arithmetic number, because the mean of its divisors is an integer number (24839226).

Almost surely, 2^49678451 is an apocalyptic number.

49678451 is a deficient number, since it is larger than the sum of its proper divisors (1).

49678451 is an equidigital number, since it uses as much as digits as its factorization.

49678451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 49678451 is about 7048.2941907954. The cubic root of 49678451 is about 367.6117197784.

The spelling of 49678451 in words is "forty-nine million, six hundred seventy-eight thousand, four hundred fifty-one".