53571487 has 2 divisors, whose sum is σ = 53571488. Its totient is φ = 53571486.

The previous prime is 53571409. The next prime is 53571491. The reversal of 53571487 is 78417535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53571487 - 2¹⁹ = 53047199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53571407) 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, 26785743 + 26785744.

It is an arithmetic number, because the mean of its divisors is an integer number (26785744).

Almost surely, 2^53571487 is an apocalyptic number.

53571487 is a deficient number, since it is larger than the sum of its proper divisors (1).

53571487 is an equidigital number, since it uses as much as digits as its factorization.

53571487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 40.

The square root of 53571487 is about 7319.2545385442. The cubic root of 53571487 is about 376.9738576154.

The spelling of 53571487 in words is "fifty-three million, five hundred seventy-one thousand, four hundred eighty-seven".