49647151 has 4 divisors (see below), whose sum is σ = 51248704. Its totient is φ = 48045600.

The previous prime is 49647149. The next prime is 49647161. The reversal of 49647151 is 15174694.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49647151 - 2¹ = 49647149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49647151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49647131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800730 + ... + 800791.

It is an arithmetic number, because the mean of its divisors is an integer number (12812176).

Almost surely, 2^49647151 is an apocalyptic number.

49647151 is a deficient number, since it is larger than the sum of its proper divisors (1601553).

49647151 is a wasteful number, since it uses less digits than its factorization.

49647151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601552.

The product of its digits is 30240, while the sum is 37.

The square root of 49647151 is about 7046.0734455440. The cubic root of 49647151 is about 367.5344987436.

It can be divided in two parts, 496 and 47151, that multiplied together give a square (23386896 = 4836²).

The spelling of 49647151 in words is "forty-nine million, six hundred forty-seven thousand, one hundred fifty-one".