49273621 has 2 divisors, whose sum is σ = 49273622. Its totient is φ = 49273620.

The previous prime is 49273577. The next prime is 49273649. The reversal of 49273621 is 12637294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 1179396 = 6935^2 + 1086^2 .

It is a cyclic number.

It is not a de Polignac number, because 49273621 - 2⁷ = 49273493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49273661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24636810 + 24636811.

It is an arithmetic number, because the mean of its divisors is an integer number (24636811).

Almost surely, 2^49273621 is an apocalyptic number.

It is an amenable number.

49273621 is a deficient number, since it is larger than the sum of its proper divisors (1).

49273621 is an equidigital number, since it uses as much as digits as its factorization.

49273621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 49273621 is about 7019.5171486364. The cubic root of 49273621 is about 366.6104383016.

It can be divided in two parts, 49273 and 621, that added together give a palindrome (49894).

The spelling of 49273621 in words is "forty-nine million, two hundred seventy-three thousand, six hundred twenty-one".