49853918 has 4 divisors (see below), whose sum is σ = 74780880. Its totient is φ = 24926958.

The previous prime is 49853917. The next prime is 49853927. The reversal of 49853918 is 81935894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81935894 = 2 ⋅40967947.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49853917) 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 as a sum of consecutive naturals, namely, 12463478 + ... + 12463481.

It is an arithmetic number, because the mean of its divisors is an integer number (18695220).

Almost surely, 2^49853918 is an apocalyptic number.

49853918 is a deficient number, since it is larger than the sum of its proper divisors (24926962).

49853918 is a wasteful number, since it uses less digits than its factorization.

49853918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24926961.

The product of its digits is 311040, while the sum is 47.

The square root of 49853918 is about 7060.7306987308. The cubic root of 49853918 is about 368.0440194271.

The spelling of 49853918 in words is "forty-nine million, eight hundred fifty-three thousand, nine hundred eighteen".