49145663 has 16 divisors (see below), whose sum is σ = 57308160. Its totient is φ = 41277600.

The previous prime is 49145659. The next prime is 49145669. The reversal of 49145663 is 36654194.

It is not a de Polignac number, because 49145663 - 2² = 49145659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49145669) 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, 99848 + ... + 100338.

It is an arithmetic number, because the mean of its divisors is an integer number (3581760).

Almost surely, 2^49145663 is an apocalyptic number.

49145663 is a deficient number, since it is larger than the sum of its proper divisors (8162497).

49145663 is a wasteful number, since it uses less digits than its factorization.

49145663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758.

The product of its digits is 77760, while the sum is 38.

The square root of 49145663 is about 7010.3967790704. The cubic root of 49145663 is about 366.2928146355.

The spelling of 49145663 in words is "forty-nine million, one hundred forty-five thousand, six hundred sixty-three".