51204115 has 8 divisors (see below), whose sum is σ = 63105840. Its totient is φ = 39856032.

The previous prime is 51204089. The next prime is 51204133. The reversal of 51204115 is 51140215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51204115 is a prime.

It is a super-2 number, since 2×51204115² = 5243722785866450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51204092 and 51204101.

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, 138205 + ... + 138574.

It is an arithmetic number, because the mean of its divisors is an integer number (7888230).

Almost surely, 2^51204115 is an apocalyptic number.

51204115 is a deficient number, since it is larger than the sum of its proper divisors (11901725).

51204115 is a wasteful number, since it uses less digits than its factorization.

51204115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276821.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51204115 is about 7155.7050665885. The cubic root of 51204115 is about 371.3370544111.

The spelling of 51204115 in words is "fifty-one million, two hundred four thousand, one hundred fifteen".