53403407 has 2 divisors, whose sum is σ = 53403408. Its totient is φ = 53403406.

The previous prime is 53403391. The next prime is 53403419. The reversal of 53403407 is 70430435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53403407 - 2⁴ = 53403391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53406407) 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, 26701703 + 26701704.

It is an arithmetic number, because the mean of its divisors is an integer number (26701704).

Almost surely, 2^53403407 is an apocalyptic number.

53403407 is a deficient number, since it is larger than the sum of its proper divisors (1).

53403407 is an equidigital number, since it uses as much as digits as its factorization.

53403407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53403407 is about 7307.7634745523. The cubic root of 53403407 is about 376.5791940178.

The spelling of 53403407 in words is "fifty-three million, four hundred three thousand, four hundred seven".