51012315 has 32 divisors (see below), whose sum is σ = 91238400. Its totient is φ = 27041760.

The previous prime is 51012301. The next prime is 51012389. The reversal of 51012315 is 51321015.

51012315 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 51012315 - 2¹² = 51008219 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23110 + ... + 25220.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^51012315 is an apocalyptic number.

51012315 is a deficient number, since it is larger than the sum of its proper divisors (40226085).

51012315 is a wasteful number, since it uses less digits than its factorization.

51012315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2298 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 51012315 is about 7142.2905989605. The cubic root of 51012315 is about 370.8728237483.

The spelling of 51012315 in words is "fifty-one million, twelve thousand, three hundred fifteen".