51160994 has 4 divisors (see below), whose sum is σ = 76741494. Its totient is φ = 25580496.

The previous prime is 51160961. The next prime is 51160997. The reversal of 51160994 is 49906115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47100769 + 4060225 = 6863^2 + 2015^2 .

It is not an unprimeable number, because it can be changed into a prime (51160997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12790247 + ... + 12790250.

Almost surely, 2^51160994 is an apocalyptic number.

51160994 is a deficient number, since it is larger than the sum of its proper divisors (25580500).

51160994 is a wasteful number, since it uses less digits than its factorization.

51160994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25580499.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 51160994 is about 7152.6913815710. The cubic root of 51160994 is about 371.2327859545.

The spelling of 51160994 in words is "fifty-one million, one hundred sixty thousand, nine hundred ninety-four".