49022821 has 4 divisors (see below), whose sum is σ = 51154272. Its totient is φ = 46891372.

The previous prime is 49022819. The next prime is 49022843. The reversal of 49022821 is 12822094.

49022821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49022821 - 2¹ = 49022819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49022821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49022801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065691 + ... + 1065736.

It is an arithmetic number, because the mean of its divisors is an integer number (12788568).

Almost surely, 2^49022821 is an apocalyptic number.

It is an amenable number.

49022821 is a deficient number, since it is larger than the sum of its proper divisors (2131451).

49022821 is a wasteful number, since it uses less digits than its factorization.

49022821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131450.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 49022821 is about 7001.6298816776. The cubic root of 49022821 is about 365.9873710394.

The spelling of 49022821 in words is "forty-nine million, twenty-two thousand, eight hundred twenty-one".