53432287 has 2 divisors, whose sum is σ = 53432288. Its totient is φ = 53432286.

The previous prime is 53432263. The next prime is 53432303. The reversal of 53432287 is 78223435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53432287 - 2²³ = 45043679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53432087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26716143 + 26716144.

It is an arithmetic number, because the mean of its divisors is an integer number (26716144).

Almost surely, 2^53432287 is an apocalyptic number.

53432287 is a deficient number, since it is larger than the sum of its proper divisors (1).

53432287 is an equidigital number, since it uses as much as digits as its factorization.

53432287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 53432287 is about 7309.7391882337. The cubic root of 53432287 is about 376.6470651385.

The spelling of 53432287 in words is "fifty-three million, four hundred thirty-two thousand, two hundred eighty-seven".