51695798 has 24 divisors (see below), whose sum is σ = 97413456. Its totient is φ = 20140560.

The previous prime is 51695797. The next prime is 51695821. The reversal of 51695798 is 89759615.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51695797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13565 + ... + 16952.

It is an arithmetic number, because the mean of its divisors is an integer number (4058894).

Almost surely, 2^51695798 is an apocalyptic number.

51695798 is a deficient number, since it is larger than the sum of its proper divisors (45717658).

51695798 is a wasteful number, since it uses less digits than its factorization.

51695798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30548 (or 30537 counting only the distinct ones).

The product of its digits is 680400, while the sum is 50.

The square root of 51695798 is about 7189.9789985785. The cubic root of 51695798 is about 372.5218472840.

The spelling of 51695798 in words is "fifty-one million, six hundred ninety-five thousand, seven hundred ninety-eight".