53367421 has 2 divisors, whose sum is σ = 53367422. Its totient is φ = 53367420.

The previous prime is 53367407. The next prime is 53367451. The reversal of 53367421 is 12476335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51998521 + 1368900 = 7211^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 53367421 - 2¹¹ = 53365373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53367401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26683710 + 26683711.

It is an arithmetic number, because the mean of its divisors is an integer number (26683711).

Almost surely, 2^53367421 is an apocalyptic number.

It is an amenable number.

53367421 is a deficient number, since it is larger than the sum of its proper divisors (1).

53367421 is an equidigital number, since it uses as much as digits as its factorization.

53367421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 53367421 is about 7305.3008836050. The cubic root of 53367421 is about 376.4945887794.

The spelling of 53367421 in words is "fifty-three million, three hundred sixty-seven thousand, four hundred twenty-one".