51211130 has 8 divisors (see below), whose sum is σ = 92180052. Its totient is φ = 20484448.

The previous prime is 51211117. The next prime is 51211159. The reversal of 51211130 is 3111215.

It can be written as a sum of positive squares in 2 ways, for example, as 50566321 + 644809 = 7111^2 + 803^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560547 + ... + 2560566.

Almost surely, 2^51211130 is an apocalyptic number.

51211130 is a deficient number, since it is larger than the sum of its proper divisors (40968922).

51211130 is a wasteful number, since it uses less digits than its factorization.

51211130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121120.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 51211130 is about 7156.1952181309. The cubic root of 51211130 is about 371.3540114498.

Adding to 51211130 its reverse (3111215), we get a palindrome (54322345).

The spelling of 51211130 in words is "fifty-one million, two hundred eleven thousand, one hundred thirty".