51677798 has 8 divisors (see below), whose sum is σ = 77550960. Its totient is φ = 25827480.

The previous prime is 51677783. The next prime is 51677827. The reversal of 51677798 is 89777615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51677798² = 5341189612257608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063 + ... + 10373.

It is an arithmetic number, because the mean of its divisors is an integer number (9693870).

Almost surely, 2^51677798 is an apocalyptic number.

51677798 is a deficient number, since it is larger than the sum of its proper divisors (25873162).

51677798 is a wasteful number, since it uses less digits than its factorization.

51677798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11422.

The product of its digits is 740880, while the sum is 50.

The square root of 51677798 is about 7188.7271474163. The cubic root of 51677798 is about 372.4786060412.

The spelling of 51677798 in words is "fifty-one million, six hundred seventy-seven thousand, seven hundred ninety-eight".