53187571 has 2 divisors, whose sum is σ = 53187572. Its totient is φ = 53187570.

The previous prime is 53187551. The next prime is 53187583. The reversal of 53187571 is 17578135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53187571 - 2⁵ = 53187539 is a prime.

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 53187571.

It is not a weakly prime, because it can be changed into another prime (53187521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26593785 + 26593786.

It is an arithmetic number, because the mean of its divisors is an integer number (26593786).

Almost surely, 2^53187571 is an apocalyptic number.

53187571 is a deficient number, since it is larger than the sum of its proper divisors (1).

53187571 is an equidigital number, since it uses as much as digits as its factorization.

53187571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 37.

The square root of 53187571 is about 7292.9809406031. The cubic root of 53187571 is about 376.0711796547.

The spelling of 53187571 in words is "fifty-three million, one hundred eighty-seven thousand, five hundred seventy-one".