53625109 has 2 divisors, whose sum is σ = 53625110. Its totient is φ = 53625108.

The previous prime is 53625107. The next prime is 53625113. The reversal of 53625109 is 90152635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50552100 + 3073009 = 7110^2 + 1753^2 .

It is a cyclic number.

It is not a de Polignac number, because 53625109 - 2¹ = 53625107 is a prime.

Together with 53625107, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53625101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26812554 + 26812555.

It is an arithmetic number, because the mean of its divisors is an integer number (26812555).

Almost surely, 2^53625109 is an apocalyptic number.

It is an amenable number.

53625109 is a deficient number, since it is larger than the sum of its proper divisors (1).

53625109 is an equidigital number, since it uses as much as digits as its factorization.

53625109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 53625109 is about 7322.9167003319. The cubic root of 53625109 is about 377.0995921102.

The spelling of 53625109 in words is "fifty-three million, six hundred twenty-five thousand, one hundred nine".