49515047 has 2 divisors, whose sum is σ = 49515048. Its totient is φ = 49515046.

The previous prime is 49515041. The next prime is 49515049. The reversal of 49515047 is 74051594.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49515047 is a prime.

Together with 49515049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 49514998 and 49515016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49515041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24757523 + 24757524.

It is an arithmetic number, because the mean of its divisors is an integer number (24757524).

Almost surely, 2^49515047 is an apocalyptic number.

49515047 is a deficient number, since it is larger than the sum of its proper divisors (1).

49515047 is an equidigital number, since it uses as much as digits as its factorization.

49515047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 49515047 is about 7036.6929022091. The cubic root of 49515047 is about 367.2082235245.

The spelling of 49515047 in words is "forty-nine million, five hundred fifteen thousand, forty-seven".