51845603 has 2 divisors, whose sum is σ = 51845604. Its totient is φ = 51845602.

The previous prime is 51845579. The next prime is 51845641. The reversal of 51845603 is 30654815.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51845603 - 2⁶ = 51845539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51845603.

It is not a weakly prime, because it can be changed into another prime (51845683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25922801 + 25922802.

It is an arithmetic number, because the mean of its divisors is an integer number (25922802).

Almost surely, 2^51845603 is an apocalyptic number.

51845603 is a deficient number, since it is larger than the sum of its proper divisors (1).

51845603 is an equidigital number, since it uses as much as digits as its factorization.

51845603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 51845603 is about 7200.3890867091. The cubic root of 51845603 is about 372.8813337365.

The spelling of 51845603 in words is "fifty-one million, eight hundred forty-five thousand, six hundred three".