105625589 has 2 divisors, whose sum is σ = 105625590. Its totient is φ = 105625588.

The previous prime is 105625577. The next prime is 105625609. The reversal of 105625589 is 985526501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103693489 + 1932100 = 10183^2 + 1390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105625589 is a prime.

It is a super-2 number, since 2×105625589² = 22313530103193842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105625549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52812794 + 52812795.

It is an arithmetic number, because the mean of its divisors is an integer number (52812795).

Almost surely, 2^105625589 is an apocalyptic number.

It is an amenable number.

105625589 is a deficient number, since it is larger than the sum of its proper divisors (1).

105625589 is an equidigital number, since it uses as much as digits as its factorization.

105625589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 105625589 is about 10277.4310506079. The cubic root of 105625589 is about 472.7044759481.

The spelling of 105625589 in words is "one hundred five million, six hundred twenty-five thousand, five hundred eighty-nine".