49978593 has 16 divisors (see below), whose sum is σ = 84620160. Its totient is φ = 28559088.

The previous prime is 49978567. The next prime is 49978597. The reversal of 49978593 is 39587994.

49978593 is a `hidden beast` number, since 49 + 9 + 7 + 8 + 593 = 666.

It is not a de Polignac number, because 49978593 - 2⁹ = 49978081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49978597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132030 + ... + 132407.

It is an arithmetic number, because the mean of its divisors is an integer number (5288760).

Almost surely, 2^49978593 is an apocalyptic number.

It is an amenable number.

49978593 is a deficient number, since it is larger than the sum of its proper divisors (34641567).

49978593 is a wasteful number, since it uses less digits than its factorization.

49978593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264453 (or 264447 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 49978593 is about 7069.5539463250. The cubic root of 49978593 is about 368.3505663174.

The spelling of 49978593 in words is "forty-nine million, nine hundred seventy-eight thousand, five hundred ninety-three".