49515647 has 2 divisors, whose sum is σ = 49515648. Its totient is φ = 49515646.

The previous prime is 49515643. The next prime is 49515671. The reversal of 49515647 is 74651594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49515647 - 2² = 49515643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49515643) 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, 24757823 + 24757824.

It is an arithmetic number, because the mean of its divisors is an integer number (24757824).

Almost surely, 2^49515647 is an apocalyptic number.

49515647 is a deficient number, since it is larger than the sum of its proper divisors (1).

49515647 is an equidigital number, since it uses as much as digits as its factorization.

49515647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The square root of 49515647 is about 7036.7355357438. The cubic root of 49515647 is about 367.2097067372.

The spelling of 49515647 in words is "forty-nine million, five hundred fifteen thousand, six hundred forty-seven".