51075715 has 8 divisors (see below), whose sum is σ = 61582608. Its totient is φ = 40666080.

The previous prime is 51075677. The next prime is 51075733. The reversal of 51075715 is 51757015.

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

It is not a de Polignac number, because 51075715 - 2¹¹ = 51073667 is a prime.

It is a super-2 number, since 2×51075715² = 5217457325522450, which contains 22 as substring.

It is a Duffinian number.

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, 23152 + ... + 25261.

It is an arithmetic number, because the mean of its divisors is an integer number (7697826).

Almost surely, 2^51075715 is an apocalyptic number.

51075715 is a deficient number, since it is larger than the sum of its proper divisors (10506893).

51075715 is a wasteful number, since it uses less digits than its factorization.

51075715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48629.

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 51075715 is about 7146.7275728126. The cubic root of 51075715 is about 371.0264049810.

The spelling of 51075715 in words is "fifty-one million, seventy-five thousand, seven hundred fifteen".