51180951 has 4 divisors (see below), whose sum is σ = 68241272. Its totient is φ = 34120632.

The previous prime is 51180869. The next prime is 51180973. The reversal of 51180951 is 15908115.

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

It is not a de Polignac number, because 51180951 - 2⁷ = 51180823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51185951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8530156 + ... + 8530161.

It is an arithmetic number, because the mean of its divisors is an integer number (17060318).

Almost surely, 2^51180951 is an apocalyptic number.

51180951 is a deficient number, since it is larger than the sum of its proper divisors (17060321).

51180951 is a wasteful number, since it uses less digits than its factorization.

51180951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17060320.

The product of its (nonzero) digits is 1800, while the sum is 30.

The square root of 51180951 is about 7154.0863148274. The cubic root of 51180951 is about 371.2810501300.

The spelling of 51180951 in words is "fifty-one million, one hundred eighty thousand, nine hundred fifty-one".