49378163 has 4 divisors (see below), whose sum is σ = 49554168. Its totient is φ = 49202160.

The previous prime is 49378159. The next prime is 49378201. The reversal of 49378163 is 36187394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36187394 = 2 ⋅18093697.

It is a cyclic number.

It is not a de Polignac number, because 49378163 - 2² = 49378159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49378163.

It is not an unprimeable number, because it can be changed into a prime (49378363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87581 + ... + 88142.

It is an arithmetic number, because the mean of its divisors is an integer number (12388542).

Almost surely, 2^49378163 is an apocalyptic number.

49378163 is a deficient number, since it is larger than the sum of its proper divisors (176005).

49378163 is a wasteful number, since it uses less digits than its factorization.

49378163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176004.

The product of its digits is 108864, while the sum is 41.

The square root of 49378163 is about 7026.9597266528. The cubic root of 49378163 is about 366.8695297078.

The spelling of 49378163 in words is "forty-nine million, three hundred seventy-eight thousand, one hundred sixty-three".