51894315 has 48 divisors (see below), whose sum is σ = 100560096. Its totient is φ = 24537600.

The previous prime is 51894287. The next prime is 51894361. The reversal of 51894315 is 51349815.

It is a de Polignac number, because none of the positive numbers 2^k-51894315 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51894315.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19017 + ... + 21573.

It is an arithmetic number, because the mean of its divisors is an integer number (2095002).

Almost surely, 2^51894315 is an apocalyptic number.

51894315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51894315 is a deficient number, since it is larger than the sum of its proper divisors (48665781).

51894315 is a wasteful number, since it uses less digits than its factorization.

51894315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2617 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 51894315 is about 7203.7708875283. The cubic root of 51894315 is about 372.9980785120.

The spelling of 51894315 in words is "fifty-one million, eight hundred ninety-four thousand, three hundred fifteen".