49978049 has 8 divisors (see below), whose sum is σ = 56401920. Its totient is φ = 43867600.

The previous prime is 49978043. The next prime is 49978067. The reversal of 49978049 is 94087994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49978049 - 2⁸ = 49977793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49977988 and 49978006.

It is not an unprimeable number, because it can be changed into a prime (49978043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78017 + ... + 78654.

It is an arithmetic number, because the mean of its divisors is an integer number (7050240).

Almost surely, 2^49978049 is an apocalyptic number.

It is an amenable number.

49978049 is a deficient number, since it is larger than the sum of its proper divisors (6423871).

49978049 is a wasteful number, since it uses less digits than its factorization.

49978049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156711.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 49978049 is about 7069.5154713743. The cubic root of 49978049 is about 368.3492298557.

The spelling of 49978049 in words is "forty-nine million, nine hundred seventy-eight thousand, forty-nine".