49215851 has 8 divisors (see below), whose sum is σ = 50054400. Its totient is φ = 48381480.

The previous prime is 49215839. The next prime is 49215857. The reversal of 49215851 is 15851294.

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 49215851 - 2⁶ = 49215787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49215857) 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, 30380 + ... + 31958.

It is an arithmetic number, because the mean of its divisors is an integer number (6256800).

Almost surely, 2^49215851 is an apocalyptic number.

49215851 is a deficient number, since it is larger than the sum of its proper divisors (838549).

49215851 is a wasteful number, since it uses less digits than its factorization.

49215851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its digits is 14400, while the sum is 35.

The square root of 49215851 is about 7015.4009864013. The cubic root of 49215851 is about 366.4671069274.

The spelling of 49215851 in words is "forty-nine million, two hundred fifteen thousand, eight hundred fifty-one".