49651605 has 24 divisors (see below), whose sum is σ = 86591232. Its totient is φ = 26318304.

The previous prime is 49651603. The next prime is 49651643. The reversal of 49651605 is 50615694.

49651605 is a `hidden beast` number, since 49 + 6 + 5 + 1 + 605 = 666.

It is not a de Polignac number, because 49651605 - 2¹ = 49651603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49651605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49651603) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4212 + ... + 10818.

It is an arithmetic number, because the mean of its divisors is an integer number (3607968).

Almost surely, 2^49651605 is an apocalyptic number.

49651605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49651605 is a deficient number, since it is larger than the sum of its proper divisors (36939627).

49651605 is a wasteful number, since it uses less digits than its factorization.

49651605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6785 (or 6782 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 49651605 is about 7046.3895010140. The cubic root of 49651605 is about 367.5454893018.

The spelling of 49651605 in words is "forty-nine million, six hundred fifty-one thousand, six hundred five".