51105436 has 12 divisors (see below), whose sum is σ = 91851928. Its totient is φ = 24862032.

The previous prime is 51105367. The next prime is 51105443. The reversal of 51105436 is 63450115.

It is a super-2 number, since 2×51105436² = 5223531177500192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51105436.

It is a congruent number.

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, 172506 + ... + 172801.

Almost surely, 2^51105436 is an apocalyptic number.

It is an amenable number.

51105436 is a deficient number, since it is larger than the sum of its proper divisors (40746492).

51105436 is a wasteful number, since it uses less digits than its factorization.

51105436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345348 (or 345346 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51105436 is about 7148.8066136943. The cubic root of 51105436 is about 371.0983578817.

The spelling of 51105436 in words is "fifty-one million, one hundred five thousand, four hundred thirty-six".