51030315 has 36 divisors (see below), whose sum is σ = 102898224. Its totient is φ = 23327136.

The previous prime is 51030313. The next prime is 51030319. The reversal of 51030315 is 51303015.

It is a happy number.

It is not a de Polignac number, because 51030315 - 2¹ = 51030313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51030313) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9367 + ... + 13776.

It is an arithmetic number, because the mean of its divisors is an integer number (2858284).

Almost surely, 2^51030315 is an apocalyptic number.

51030315 is an abundant number, since it is smaller than the sum of its proper divisors (51867909).

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

51030315 is a wasteful number, since it uses less digits than its factorization.

51030315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23168 (or 23158 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 51030315 is about 7143.5505877680. The cubic root of 51030315 is about 370.9164401822.

The spelling of 51030315 in words is "fifty-one million, thirty thousand, three hundred fifteen".