49976021 has 2 divisors, whose sum is σ = 49976022. Its totient is φ = 49976020.

The previous prime is 49975969. The next prime is 49976027. The reversal of 49976021 is 12067994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46771921 + 3204100 = 6839^2 + 1790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49976021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49976027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988010 + 24988011.

It is an arithmetic number, because the mean of its divisors is an integer number (24988011).

Almost surely, 2^49976021 is an apocalyptic number.

It is an amenable number.

49976021 is a deficient number, since it is larger than the sum of its proper divisors (1).

49976021 is an equidigital number, since it uses as much as digits as its factorization.

49976021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 49976021 is about 7069.3720371756. The cubic root of 49976021 is about 368.3442475194.

The spelling of 49976021 in words is "forty-nine million, nine hundred seventy-six thousand, twenty-one".