51025648 has 20 divisors (see below), whose sum is σ = 101274768. Its totient is φ = 24890240.

The previous prime is 51025631. The next prime is 51025651. The reversal of 51025648 is 84652015.

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, 38236 + ... + 39547.

Almost surely, 2^51025648 is an apocalyptic number.

It is an amenable number.

51025648 is a deficient number, since it is larger than the sum of its proper divisors (50249120).

51025648 is a wasteful number, since it uses less digits than its factorization.

51025648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77832 (or 77826 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 51025648 is about 7143.2239220117. The cubic root of 51025648 is about 370.9051323952.

The spelling of 51025648 in words is "fifty-one million, twenty-five thousand, six hundred forty-eight".