49015645 has 16 divisors (see below), whose sum is σ = 70145280. Its totient is φ = 32148864.

The previous prime is 49015643. The next prime is 49015651. The reversal of 49015645 is 54651094.

It is a cyclic number.

It is not a de Polignac number, because 49015645 - 2¹ = 49015643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49015645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49015643) 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, 29640 + ... + 31249.

It is an arithmetic number, because the mean of its divisors is an integer number (4384080).

Almost surely, 2^49015645 is an apocalyptic number.

It is an amenable number.

49015645 is a deficient number, since it is larger than the sum of its proper divisors (21129635).

49015645 is a wasteful number, since it uses less digits than its factorization.

49015645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60924.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 49015645 is about 7001.1174108138. The cubic root of 49015645 is about 365.9695123260.

The spelling of 49015645 in words is "forty-nine million, fifteen thousand, six hundred forty-five".