49815159 has 12 divisors (see below), whose sum is σ = 67872504. Its totient is φ = 32499184.

The previous prime is 49815149. The next prime is 49815173. The reversal of 49815159 is 95151894.

It is not a de Polignac number, because 49815159 - 2¹² = 49811063 is a prime.

It is a super-3 number, since 3×49815159³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49815159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49815149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2869 + ... + 10385.

It is an arithmetic number, because the mean of its divisors is an integer number (5656042).

Almost surely, 2^49815159 is an apocalyptic number.

49815159 is a deficient number, since it is larger than the sum of its proper divisors (18057345).

49815159 is an equidigital number, since it uses as much as digits as its factorization.

49815159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614 (or 7567 counting only the distinct ones).

The product of its digits is 64800, while the sum is 42.

The square root of 49815159 is about 7057.9854774574. The cubic root of 49815159 is about 367.9486159155.

The spelling of 49815159 in words is "forty-nine million, eight hundred fifteen thousand, one hundred fifty-nine".