51845604 has 24 divisors (see below), whose sum is σ = 127340640. Its totient is φ = 16372224.

The previous prime is 51845603. The next prime is 51845641. The reversal of 51845604 is 40654815.

51845604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51845603) 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 7 ways as a sum of consecutive naturals, for example, 113469 + ... + 113924.

It is an arithmetic number, because the mean of its divisors is an integer number (5305860).

Almost surely, 2^51845604 is an apocalyptic number.

It is an amenable number.

51845604 is an abundant number, since it is smaller than the sum of its proper divisors (75495036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51845604 is a wasteful number, since it uses less digits than its factorization.

51845604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227419 (or 227417 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 51845604 is about 7200.3891561498. The cubic root of 51845604 is about 372.8813361339.

The spelling of 51845604 in words is "fifty-one million, eight hundred forty-five thousand, six hundred four".