49664415 has 16 divisors (see below), whose sum is σ = 79589088. Its totient is φ = 26445696.

The previous prime is 49664411. The next prime is 49664453. The reversal of 49664415 is 51446694.

It is not a de Polignac number, because 49664415 - 2² = 49664411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49664411) 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 15 ways as a sum of consecutive naturals, for example, 8737 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (4974318).

Almost surely, 2^49664415 is an apocalyptic number.

49664415 is a deficient number, since it is larger than the sum of its proper divisors (29924673).

49664415 is a wasteful number, since it uses less digits than its factorization.

49664415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258.

The product of its digits is 103680, while the sum is 39.

The square root of 49664415 is about 7047.2984185431. The cubic root of 49664415 is about 367.5770952144.

The spelling of 49664415 in words is "forty-nine million, six hundred sixty-four thousand, four hundred fifteen".