49666587 has 4 divisors (see below), whose sum is σ = 66222120. Its totient is φ = 33111056.

The previous prime is 49666583. The next prime is 49666597. The reversal of 49666587 is 78566694.

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

It is a cyclic number.

It is not a de Polignac number, because 49666587 - 2² = 49666583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49666583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8277762 + ... + 8277767.

It is an arithmetic number, because the mean of its divisors is an integer number (16555530).

Almost surely, 2^49666587 is an apocalyptic number.

49666587 is a deficient number, since it is larger than the sum of its proper divisors (16555533).

49666587 is a wasteful number, since it uses less digits than its factorization.

49666587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16555532.

The product of its digits is 2177280, while the sum is 51.

The square root of 49666587 is about 7047.4525184637. The cubic root of 49666587 is about 367.5824536171.

The spelling of 49666587 in words is "forty-nine million, six hundred sixty-six thousand, five hundred eighty-seven".