51303155 has 8 divisors (see below), whose sum is σ = 62607600. Its totient is φ = 40346656.

The previous prime is 51303151. The next prime is 51303169. The reversal of 51303155 is 55130315.

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

It is a cyclic number.

It is not a de Polignac number, because 51303155 - 2² = 51303151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51303155.

It is not an unprimeable number, because it can be changed into a prime (51303151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86660 + ... + 87249.

It is an arithmetic number, because the mean of its divisors is an integer number (7825950).

Almost surely, 2^51303155 is an apocalyptic number.

51303155 is a deficient number, since it is larger than the sum of its proper divisors (11304445).

51303155 is a wasteful number, since it uses less digits than its factorization.

51303155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173973.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 51303155 is about 7162.6220757485. The cubic root of 51303155 is about 371.5763160119.

The spelling of 51303155 in words is "fifty-one million, three hundred three thousand, one hundred fifty-five".