49509766 has 4 divisors (see below), whose sum is σ = 74264652. Its totient is φ = 24754882.

The previous prime is 49509751. The next prime is 49509767. The reversal of 49509766 is 66790594.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49509767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12377440 + ... + 12377443.

It is an arithmetic number, because the mean of its divisors is an integer number (18566163).

Almost surely, 2^49509766 is an apocalyptic number.

49509766 is a deficient number, since it is larger than the sum of its proper divisors (24754886).

49509766 is a wasteful number, since it uses less digits than its factorization.

49509766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24754885.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 49509766 is about 7036.3176449049. The cubic root of 49509766 is about 367.1951682636.

The spelling of 49509766 in words is "forty-nine million, five hundred nine thousand, seven hundred sixty-six".