53421677 has 2 divisors, whose sum is σ = 53421678. Its totient is φ = 53421676.

The previous prime is 53421653. The next prime is 53421679. The reversal of 53421677 is 77612435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53421481 + 196 = 7309^2 + 14^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53421677 is a prime.

Together with 53421679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53421679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26710838 + 26710839.

It is an arithmetic number, because the mean of its divisors is an integer number (26710839).

Almost surely, 2^53421677 is an apocalyptic number.

It is an amenable number.

53421677 is a deficient number, since it is larger than the sum of its proper divisors (1).

53421677 is an equidigital number, since it uses as much as digits as its factorization.

53421677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 53421677 is about 7309.0134081147. The cubic root of 53421677 is about 376.6221333346.

The spelling of 53421677 in words is "fifty-three million, four hundred twenty-one thousand, six hundred seventy-seven".