49871251 has 8 divisors (see below), whose sum is σ = 53802144. Its totient is φ = 46051200.

The previous prime is 49871231. The next prime is 49871267. The reversal of 49871251 is 15217894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49871251 - 2¹⁹ = 49346963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49871251.

It is not an unprimeable number, because it can be changed into a prime (49871201) 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, 26775 + ... + 28576.

It is an arithmetic number, because the mean of its divisors is an integer number (6725268).

Almost surely, 2^49871251 is an apocalyptic number.

49871251 is a deficient number, since it is larger than the sum of its proper divisors (3930893).

49871251 is a wasteful number, since it uses less digits than its factorization.

49871251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55421.

The product of its digits is 20160, while the sum is 37.

The square root of 49871251 is about 7061.9580146019. The cubic root of 49871251 is about 368.0866678158.

The spelling of 49871251 in words is "forty-nine million, eight hundred seventy-one thousand, two hundred fifty-one".