49688569 has 16 divisors (see below), whose sum is σ = 60984576. Its totient is φ = 39513600.

The previous prime is 49688563. The next prime is 49688581. The reversal of 49688569 is 96588694.

It is not a de Polignac number, because 49688569 - 2⁹ = 49688057 is a prime.

It is a super-2 number, since 2×49688569² = 4937907778535522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49688563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5509 + ... + 11389.

It is an arithmetic number, because the mean of its divisors is an integer number (3811536).

Almost surely, 2^49688569 is an apocalyptic number.

It is an amenable number.

49688569 is a deficient number, since it is larger than the sum of its proper divisors (11296007).

49688569 is a wasteful number, since it uses less digits than its factorization.

49688569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976.

The product of its digits is 3732480, while the sum is 55.

The square root of 49688569 is about 7049.0119165738. The cubic root of 49688569 is about 367.6366752190.

The spelling of 49688569 in words is "forty-nine million, six hundred eighty-eight thousand, five hundred sixty-nine".