53625621887 has 2 divisors, whose sum is σ = 53625621888. Its totient is φ = 53625621886.

The previous prime is 53625621811. The next prime is 53625621949. The reversal of 53625621887 is 78812652635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53625621887 - 2¹⁰ = 53625620863 is a prime.

It is a super-3 number, since 3×53625621887³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53625621587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26812810943 + 26812810944.

It is an arithmetic number, because the mean of its divisors is an integer number (26812810944).

Almost surely, 2^53625621887 is an apocalyptic number.

53625621887 is a deficient number, since it is larger than the sum of its proper divisors (1).

53625621887 is an equidigital number, since it uses as much as digits as its factorization.

53625621887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 53.

The spelling of 53625621887 in words is "fifty-three billion, six hundred twenty-five million, six hundred twenty-one thousand, eight hundred eighty-seven".