51485936 has 20 divisors (see below), whose sum is σ = 100033032. Its totient is φ = 25670976.

The previous prime is 51485923. The next prime is 51485957. The reversal of 51485936 is 63958415.

It is a junction number, because it is equal to n+sod(n) for n = 51485893 and 51485902.

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, 1655 + ... + 10281.

Almost surely, 2^51485936 is an apocalyptic number.

It is an amenable number.

51485936 is a deficient number, since it is larger than the sum of its proper divisors (48547096).

51485936 is a wasteful number, since it uses less digits than its factorization.

51485936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9008 (or 9002 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 51485936 is about 7175.3700949846. The cubic root of 51485936 is about 372.0170724812.

The spelling of 51485936 in words is "fifty-one million, four hundred eighty-five thousand, nine hundred thirty-six".