49183021 has 2 divisors, whose sum is σ = 49183022. Its totient is φ = 49183020.

The previous prime is 49182997. The next prime is 49183063. The reversal of 49183021 is 12038194.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49154121 + 28900 = 7011^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 49183021 - 2¹⁵ = 49150253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49181021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24591510 + 24591511.

It is an arithmetic number, because the mean of its divisors is an integer number (24591511).

Almost surely, 2^49183021 is an apocalyptic number.

It is an amenable number.

49183021 is a deficient number, since it is larger than the sum of its proper divisors (1).

49183021 is an equidigital number, since it uses as much as digits as its factorization.

49183021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 49183021 is about 7013.0607440689. The cubic root of 49183021 is about 366.3856034345.

The spelling of 49183021 in words is "forty-nine million, one hundred eighty-three thousand, twenty-one".