49659563 has 4 divisors (see below), whose sum is σ = 49911840. Its totient is φ = 49407288.

The previous prime is 49659509. The next prime is 49659583. The reversal of 49659563 is 36595694.

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 49659563 - 2¹⁸ = 49397419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49659503) 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, 125843 + ... + 126236.

It is an arithmetic number, because the mean of its divisors is an integer number (12477960).

Almost surely, 2^49659563 is an apocalyptic number.

49659563 is a deficient number, since it is larger than the sum of its proper divisors (252277).

49659563 is a wasteful number, since it uses less digits than its factorization.

49659563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252276.

The product of its digits is 874800, while the sum is 47.

The square root of 49659563 is about 7046.9541647438. The cubic root of 49659563 is about 367.5651245902.

The spelling of 49659563 in words is "forty-nine million, six hundred fifty-nine thousand, five hundred sixty-three".