51660603 has 12 divisors (see below), whose sum is σ = 79010568. Its totient is φ = 32414400.

The previous prime is 51660589. The next prime is 51660613. The reversal of 51660603 is 30606615.

51660603 is a `hidden beast` number, since 51 + 6 + 6 + 0 + 603 = 666.

51660603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51660603 - 2²⁵ = 18106171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51660613) 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 in 11 ways as a sum of consecutive naturals, for example, 168673 + ... + 168978.

It is an arithmetic number, because the mean of its divisors is an integer number (6584214).

Almost surely, 2^51660603 is an apocalyptic number.

51660603 is a deficient number, since it is larger than the sum of its proper divisors (27349965).

51660603 is a wasteful number, since it uses less digits than its factorization.

51660603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337674 (or 337671 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 51660603 is about 7187.5310781937. The cubic root of 51660603 is about 372.4372892645.

The spelling of 51660603 in words is "fifty-one million, six hundred sixty thousand, six hundred three".