53405507 has 2 divisors, whose sum is σ = 53405508. Its totient is φ = 53405506.

The previous prime is 53405497. The next prime is 53405509. The reversal of 53405507 is 70550435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53405507 - 2⁴ = 53405491 is a prime.

Together with 53405509, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53405507.

It is not a weakly prime, because it can be changed into another prime (53405509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702753 + 26702754.

It is an arithmetic number, because the mean of its divisors is an integer number (26702754).

Almost surely, 2^53405507 is an apocalyptic number.

53405507 is a deficient number, since it is larger than the sum of its proper divisors (1).

53405507 is an equidigital number, since it uses as much as digits as its factorization.

53405507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 53405507 is about 7307.9071559510. The cubic root of 53405507 is about 376.5841300695.

The spelling of 53405507 in words is "fifty-three million, four hundred five thousand, five hundred seven".