49645559 has 4 divisors (see below), whose sum is σ = 52565904. Its totient is φ = 46725216.

The previous prime is 49645553. The next prime is 49645571. The reversal of 49645559 is 95554694.

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 49645559 - 2¹⁶ = 49580023 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49645553) 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, 1460147 + ... + 1460180.

It is an arithmetic number, because the mean of its divisors is an integer number (13141476).

Almost surely, 2^49645559 is an apocalyptic number.

49645559 is a deficient number, since it is larger than the sum of its proper divisors (2920345).

49645559 is a wasteful number, since it uses less digits than its factorization.

49645559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920344.

The product of its digits is 972000, while the sum is 47.

The square root of 49645559 is about 7045.9604739170. The cubic root of 49645559 is about 367.5305702121.

The spelling of 49645559 in words is "forty-nine million, six hundred forty-five thousand, five hundred fifty-nine".