51005748 has 12 divisors (see below), whose sum is σ = 119013440. Its totient is φ = 17001912.

The previous prime is 51005737. The next prime is 51005749. The reversal of 51005748 is 84750015.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51005749) 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, 2125228 + ... + 2125251.

Almost surely, 2^51005748 is an apocalyptic number.

It is an amenable number.

51005748 is an abundant number, since it is smaller than the sum of its proper divisors (68007692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51005748 is a wasteful number, since it uses less digits than its factorization.

51005748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250486 (or 4250484 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 51005748 is about 7141.8308577003. The cubic root of 51005748 is about 370.8569084649.

The spelling of 51005748 in words is "fifty-one million, five thousand, seven hundred forty-eight".