51113075 has 12 divisors (see below), whose sum is σ = 68256048. Its totient is φ = 37744800.

The previous prime is 51113071. The next prime is 51113087. The reversal of 51113075 is 57031115.

It is not a de Polignac number, because 51113075 - 2² = 51113071 is a prime.

It is a super-2 number, since 2×51113075² = 5225092871911250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51113075.

It is not an unprimeable number, because it can be changed into a prime (51113071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78311 + ... + 78960.

It is an arithmetic number, because the mean of its divisors is an integer number (5688004).

Almost surely, 2^51113075 is an apocalyptic number.

51113075 is a deficient number, since it is larger than the sum of its proper divisors (17142973).

51113075 is a wasteful number, since it uses less digits than its factorization.

51113075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157294 (or 157289 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 51113075 is about 7149.3408787104. The cubic root of 51113075 is about 371.1168469724.

The spelling of 51113075 in words is "fifty-one million, one hundred thirteen thousand, seventy-five".