49031621 has 8 divisors (see below), whose sum is σ = 52043544. Its totient is φ = 46033920.

The previous prime is 49031611. The next prime is 49031627. The reversal of 49031621 is 12613094.

49031621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15100996 + 33930625 = 3886^2 + 5825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49031621 - 2¹⁸ = 48769477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49031627) 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 7 ways as a sum of consecutive naturals, for example, 4031 + ... + 10691.

It is an arithmetic number, because the mean of its divisors is an integer number (6505443).

Almost surely, 2^49031621 is an apocalyptic number.

It is an amenable number.

49031621 is a deficient number, since it is larger than the sum of its proper divisors (3011923).

49031621 is a wasteful number, since it uses less digits than its factorization.

49031621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 49031621 is about 7002.2582785841. The cubic root of 49031621 is about 366.0092689780.

The spelling of 49031621 in words is "forty-nine million, thirty-one thousand, six hundred twenty-one".