51701428 has 12 divisors (see below), whose sum is σ = 93396352. Its totient is φ = 25016760.

The previous prime is 51701423. The next prime is 51701431. The reversal of 51701428 is 82410715.

51701428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51701396 and 51701405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51701423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208350 + ... + 208597.

Almost surely, 2^51701428 is an apocalyptic number.

It is an amenable number.

51701428 is a deficient number, since it is larger than the sum of its proper divisors (41694924).

51701428 is a wasteful number, since it uses less digits than its factorization.

51701428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416982 (or 416980 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 51701428 is about 7190.3705050574. The cubic root of 51701428 is about 372.5353701231.

The spelling of 51701428 in words is "fifty-one million, seven hundred one thousand, four hundred twenty-eight".