49685665 has 8 divisors (see below), whose sum is σ = 62760960. Its totient is φ = 37656432.

The previous prime is 49685641. The next prime is 49685677. The reversal of 49685665 is 56658694.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49685665 - 2²⁵ = 16131233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261409 + ... + 261598.

It is an arithmetic number, because the mean of its divisors is an integer number (7845120).

Almost surely, 2^49685665 is an apocalyptic number.

It is an amenable number.

49685665 is a deficient number, since it is larger than the sum of its proper divisors (13075295).

49685665 is a wasteful number, since it uses less digits than its factorization.

49685665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523031.

The product of its digits is 1555200, while the sum is 49.

The square root of 49685665 is about 7048.8059272475. The cubic root of 49685665 is about 367.6295130237.

The spelling of 49685665 in words is "forty-nine million, six hundred eighty-five thousand, six hundred sixty-five".