49997775 has 12 divisors (see below), whose sum is σ = 82663112. Its totient is φ = 26665440.

The previous prime is 49997771. The next prime is 49997803. The reversal of 49997775 is 57779994.

It is not a de Polignac number, because 49997775 - 2² = 49997771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49997771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333244 + ... + 333393.

Almost surely, 2^49997775 is an apocalyptic number.

49997775 is a deficient number, since it is larger than the sum of its proper divisors (32665337).

49997775 is a wasteful number, since it uses less digits than its factorization.

49997775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666650 (or 666645 counting only the distinct ones).

The product of its digits is 5000940, while the sum is 57.

The square root of 49997775 is about 7070.9104788563. The cubic root of 49997775 is about 368.3976851363.

The spelling of 49997775 in words is "forty-nine million, nine hundred ninety-seven thousand, seven hundred seventy-five".