51065404 has 24 divisors (see below), whose sum is σ = 99560160. Its totient is φ = 22755264.

The previous prime is 51065393. The next prime is 51065411. The reversal of 51065404 is 40456015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15424 + ... + 18439.

It is an arithmetic number, because the mean of its divisors is an integer number (4148340).

Almost surely, 2^51065404 is an apocalyptic number.

It is an amenable number.

51065404 is a deficient number, since it is larger than the sum of its proper divisors (48494756).

51065404 is a wasteful number, since it uses less digits than its factorization.

51065404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33909 (or 33907 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51065404 is about 7146.0061572881. The cubic root of 51065404 is about 371.0014360975.

The spelling of 51065404 in words is "fifty-one million, sixty-five thousand, four hundred four".