53436637 has 2 divisors, whose sum is σ = 53436638. Its totient is φ = 53436636.

The previous prime is 53436631. The next prime is 53436679. The reversal of 53436637 is 73663435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33419961 + 20016676 = 5781^2 + 4474^2 .

It is a cyclic number.

It is not a de Polignac number, because 53436637 - 2³ = 53436629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53436596 and 53436605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53436631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26718318 + 26718319.

It is an arithmetic number, because the mean of its divisors is an integer number (26718319).

Almost surely, 2^53436637 is an apocalyptic number.

It is an amenable number.

53436637 is a deficient number, since it is larger than the sum of its proper divisors (1).

53436637 is an equidigital number, since it uses as much as digits as its factorization.

53436637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 37.

The square root of 53436637 is about 7310.0367304139. The cubic root of 53436637 is about 376.6572859891.

The spelling of 53436637 in words is "fifty-three million, four hundred thirty-six thousand, six hundred thirty-seven".