51571130 has 32 divisors (see below), whose sum is σ = 105235200. Its totient is φ = 18038592.

The previous prime is 51571123. The next prime is 51571159. The reversal of 51571130 is 3117515.

It is a junction number, because it is equal to n+sod(n) for n = 51571096 and 51571105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7970 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (3288600).

Almost surely, 2^51571130 is an apocalyptic number.

51571130 is an abundant number, since it is smaller than the sum of its proper divisors (53664070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51571130 is a wasteful number, since it uses less digits than its factorization.

51571130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20918.

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

The square root of 51571130 is about 7181.3041990992. The cubic root of 51571130 is about 372.2221521579. Note that the first 3 decimals are identical.

Adding to 51571130 its reverse (3117515), we get a palindrome (54688645).

The spelling of 51571130 in words is "fifty-one million, five hundred seventy-one thousand, one hundred thirty".