1625600101 has 2 divisors, whose sum is σ = 1625600102. Its totient is φ = 1625600100.

The previous prime is 1625600099. The next prime is 1625600111. The reversal of 1625600101 is 1010065261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376781025 + 248819076 = 37105^2 + 15774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625600101 - 2¹ = 1625600099 is a prime.

Together with 1625600099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1625600111) 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, 812800050 + 812800051.

It is an arithmetic number, because the mean of its divisors is an integer number (812800051).

Almost surely, 2^1625600101 is an apocalyptic number.

It is an amenable number.

1625600101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625600101 is an equidigital number, since it uses as much as digits as its factorization.

1625600101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1625600101 is about 40318.7313912529. The cubic root of 1625600101 is about 1175.8120479258.

Adding to 1625600101 its reverse (1010065261), we get a palindrome (2635665362).

The spelling of 1625600101 in words is "one billion, six hundred twenty-five million, six hundred thousand, one hundred one".