49619857 has 4 divisors (see below), whose sum is σ = 56708416. Its totient is φ = 42531300.

The previous prime is 49619837. The next prime is 49619861. The reversal of 49619857 is 75891694.

49619857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49619857 - 2¹⁵ = 49587089 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 49619857.

It is not an unprimeable number, because it can be changed into a prime (49619837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3544269 + ... + 3544282.

It is an arithmetic number, because the mean of its divisors is an integer number (14177104).

Almost surely, 2^49619857 is an apocalyptic number.

It is an amenable number.

49619857 is a deficient number, since it is larger than the sum of its proper divisors (7088559).

49619857 is an equidigital number, since it uses as much as digits as its factorization.

49619857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088558.

The product of its digits is 544320, while the sum is 49.

The square root of 49619857 is about 7044.1363558636. The cubic root of 49619857 is about 367.4671345191.

The spelling of 49619857 in words is "forty-nine million, six hundred nineteen thousand, eight hundred fifty-seven".