49085815 has 16 divisors (see below), whose sum is σ = 60782400. Its totient is φ = 38030080.

The previous prime is 49085807. The next prime is 49085819. The reversal of 49085815 is 51858094.

It is not a de Polignac number, because 49085815 - 2³ = 49085807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49085819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29742 + ... + 31348.

It is an arithmetic number, because the mean of its divisors is an integer number (3798900).

Almost surely, 2^49085815 is an apocalyptic number.

49085815 is a deficient number, since it is larger than the sum of its proper divisors (11696585).

49085815 is a wasteful number, since it uses less digits than its factorization.

49085815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 49085815 is about 7006.1269614531. The cubic root of 49085815 is about 366.1440677224.

The spelling of 49085815 in words is "forty-nine million, eighty-five thousand, eight hundred fifteen".