49365921 has 16 divisors (see below), whose sum is σ = 71930880. Its totient is φ = 29866320.

The previous prime is 49365913. The next prime is 49365931. The reversal of 49365921 is 12956394.

It is not a de Polignac number, because 49365921 - 2³ = 49365913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49365921.

It is not an unprimeable number, because it can be changed into a prime (49365931) 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, 26796 + ... + 28578.

It is an arithmetic number, because the mean of its divisors is an integer number (4495680).

Almost surely, 2^49365921 is an apocalyptic number.

It is an amenable number.

49365921 is a deficient number, since it is larger than the sum of its proper divisors (22564959).

49365921 is a wasteful number, since it uses less digits than its factorization.

49365921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636.

The product of its digits is 58320, while the sum is 39.

The square root of 49365921 is about 7026.0885989290. The cubic root of 49365921 is about 366.8392086933.

The spelling of 49365921 in words is "forty-nine million, three hundred sixty-five thousand, nine hundred twenty-one".