49647951 has 8 divisors (see below), whose sum is σ = 73552560. Its totient is φ = 33098616.

The previous prime is 49647947. The next prime is 49647979. The reversal of 49647951 is 15974694.

It is not a de Polignac number, because 49647951 - 2² = 49647947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49647897 and 49647906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49647901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919380 + ... + 919433.

It is an arithmetic number, because the mean of its divisors is an integer number (9194070).

Almost surely, 2^49647951 is an apocalyptic number.

49647951 is a deficient number, since it is larger than the sum of its proper divisors (23904609).

49647951 is a wasteful number, since it uses less digits than its factorization.

49647951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838822 (or 1838816 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 49647951 is about 7046.1302145220. The cubic root of 49647951 is about 367.5364728482.

The spelling of 49647951 in words is "forty-nine million, six hundred forty-seven thousand, nine hundred fifty-one".