49886815 has 16 divisors (see below), whose sum is σ = 67560480. Its totient is φ = 35029120.

The previous prime is 49886803. The next prime is 49886821. The reversal of 49886815 is 51868894.

It is not a de Polignac number, because 49886815 - 2¹³ = 49878623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14044 + ... + 17233.

It is an arithmetic number, because the mean of its divisors is an integer number (4222530).

Almost surely, 2^49886815 is an apocalyptic number.

49886815 is a deficient number, since it is larger than the sum of its proper divisors (17673665).

49886815 is a wasteful number, since it uses less digits than its factorization.

49886815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31322.

The product of its digits is 552960, while the sum is 49.

The square root of 49886815 is about 7063.0598893114. The cubic root of 49886815 is about 368.1249551050.

The spelling of 49886815 in words is "forty-nine million, eight hundred eighty-six thousand, eight hundred fifteen".