51386956 has 12 divisors (see below), whose sum is σ = 93028320. Its totient is φ = 24807440.

The previous prime is 51386953. The next prime is 51386957. The reversal of 51386956 is 65968315.

It is not an unprimeable number, because it can be changed into a prime (51386953) 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, 221380 + ... + 221611.

It is an arithmetic number, because the mean of its divisors is an integer number (7752360).

Almost surely, 2^51386956 is an apocalyptic number.

It is an amenable number.

51386956 is a deficient number, since it is larger than the sum of its proper divisors (41641364).

51386956 is a wasteful number, since it uses less digits than its factorization.

51386956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443024 (or 443022 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 51386956 is about 7168.4695716729. The cubic root of 51386956 is about 371.7785227305.

The spelling of 51386956 in words is "fifty-one million, three hundred eighty-six thousand, nine hundred fifty-six".