49988 has 6 divisors (see below), whose sum is σ = 87486.
Its totient is φ = 24992.
The previous prime is 49957. The next prime is 49991. The reversal of 49988 is 88994.
It can be written as a sum of positive squares in only one way, i.e., 43264 + 6724 = 208^2 + 82^2
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 49988.
It is an unprimeable number.
49988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6245 + ... + 6252.
It is an arithmetic number, because the mean of its divisors is an integer number (14581).
249988 is an apocalyptic number.
It is an amenable number.
49988 is a deficient number, since it is larger than the sum of its proper divisors (37498).
49988 is a wasteful number, since it uses less digits than its factorization.
49988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12501 (or 12499 counting only the distinct ones).
The product of its digits is 20736, while the sum is 38.
The square root of 49988 is about 223.5799633241.
The cubic root of 49988 is about 36.8373675254.
The spelling of 49988 in words is "forty-nine thousand, nine hundred eighty-eight".