51204345 has 8 divisors (see below), whose sum is σ = 81926976. Its totient is φ = 27308976.

The previous prime is 51204319. The next prime is 51204347. The reversal of 51204345 is 54340215.

51204345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51204345 - 2⁸ = 51204089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51204347) 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, 1706797 + ... + 1706826.

It is an arithmetic number, because the mean of its divisors is an integer number (10240872).

Almost surely, 2^51204345 is an apocalyptic number.

It is an amenable number.

51204345 is a deficient number, since it is larger than the sum of its proper divisors (30722631).

51204345 is a wasteful number, since it uses less digits than its factorization.

51204345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413631.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 51204345 is about 7155.7211376632. The cubic root of 51204345 is about 371.3376104041.

The spelling of 51204345 in words is "fifty-one million, two hundred four thousand, three hundred forty-five".