51211076 has 18 divisors (see below), whose sum is σ = 104251518. Its totient is φ = 21947520.

The previous prime is 51211067. The next prime is 51211079. The reversal of 51211076 is 67011215.

It can be written as a sum of positive squares in only one way, i.e., 35402500 + 15808576 = 5950^2 + 3976^2 .

It is not an unprimeable number, because it can be changed into a prime (51211079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130445 + ... + 130836.

It is an arithmetic number, because the mean of its divisors is an integer number (5791751).

Almost surely, 2^51211076 is an apocalyptic number.

It is an amenable number.

51211076 is an abundant number, since it is smaller than the sum of its proper divisors (53040442).

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

51211076 is a wasteful number, since it uses less digits than its factorization.

51211076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261299 (or 261290 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 51211076 is about 7156.1914451753. The cubic root of 51211076 is about 371.3538809240.

The spelling of 51211076 in words is "fifty-one million, two hundred eleven thousand, seventy-six".