18125573 has 2 divisors, whose sum is σ = 18125574. Its totient is φ = 18125572.

The previous prime is 18125543. The next prime is 18125603. The reversal of 18125573 is 37552181.

It is a balanced prime because it is at equal distance from previous prime (18125543) and next prime (18125603).

It can be written as a sum of positive squares in only one way, i.e., 10099684 + 8025889 = 3178^2 + 2833^2 .

It is an emirp because it is prime and its reverse (37552181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18125573 - 2¹⁰ = 18124549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18125543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9062786 + 9062787.

It is an arithmetic number, because the mean of its divisors is an integer number (9062787).

Almost surely, 2^18125573 is an apocalyptic number.

It is an amenable number.

18125573 is a deficient number, since it is larger than the sum of its proper divisors (1).

18125573 is an equidigital number, since it uses as much as digits as its factorization.

18125573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 18125573 is about 4257.4138863869. The cubic root of 18125573 is about 262.6821616928.

The spelling of 18125573 in words is "eighteen million, one hundred twenty-five thousand, five hundred seventy-three".