53631587 has 2 divisors, whose sum is σ = 53631588. Its totient is φ = 53631586.

The previous prime is 53631569. The next prime is 53631593. The reversal of 53631587 is 78513635.

53631587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53631587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53631587.

It is not a weakly prime, because it can be changed into another prime (53631187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26815793 + 26815794.

It is an arithmetic number, because the mean of its divisors is an integer number (26815794).

Almost surely, 2^53631587 is an apocalyptic number.

53631587 is a deficient number, since it is larger than the sum of its proper divisors (1).

53631587 is an equidigital number, since it uses as much as digits as its factorization.

53631587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 53631587 is about 7323.3589970723. The cubic root of 53631587 is about 377.1147762459.

It can be divided in two parts, 536 and 31587, that added together give a palindrome (32123).

The spelling of 53631587 in words is "fifty-three million, six hundred thirty-one thousand, five hundred eighty-seven".