49563986 has 4 divisors (see below), whose sum is σ = 74345982. Its totient is φ = 24781992.

The previous prime is 49563977. The next prime is 49564019. The reversal of 49563986 is 68936594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68936594 = 2 ⋅34468297.

It can be written as a sum of positive squares in only one way, i.e., 48038761 + 1525225 = 6931^2 + 1235^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12390995 + ... + 12390998.

Almost surely, 2^49563986 is an apocalyptic number.

49563986 is a deficient number, since it is larger than the sum of its proper divisors (24781996).

49563986 is a wasteful number, since it uses less digits than its factorization.

49563986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24781995.

The product of its digits is 1399680, while the sum is 50.

The square root of 49563986 is about 7040.1694581878. The cubic root of 49563986 is about 367.3291624243.

The spelling of 49563986 in words is "forty-nine million, five hundred sixty-three thousand, nine hundred eighty-six".