51020315 has 8 divisors (see below), whose sum is σ = 64825920. Its totient is φ = 38415232.

The previous prime is 51020303. The next prime is 51020323. The reversal of 51020315 is 51302015.

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 51020315 - 2¹⁰ = 51019291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 51020293 and 51020302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300035 + ... + 300204.

It is an arithmetic number, because the mean of its divisors is an integer number (8103240).

Almost surely, 2^51020315 is an apocalyptic number.

51020315 is a deficient number, since it is larger than the sum of its proper divisors (13805605).

51020315 is a wasteful number, since it uses less digits than its factorization.

51020315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600261.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 51020315 is about 7142.8506214256. The cubic root of 51020315 is about 370.8922100965.

The spelling of 51020315 in words is "fifty-one million, twenty thousand, three hundred fifteen".