51274678 has 48 divisors (see below), whose sum is σ = 97330464. Its totient is φ = 20079360.

The previous prime is 51274649. The next prime is 51274681. The reversal of 51274678 is 87647215.

It is a self number, because there is not a number n which added to its sum of digits gives 51274678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212638 + ... + 212878.

It is an arithmetic number, because the mean of its divisors is an integer number (2027718).

Almost surely, 2^51274678 is an apocalyptic number.

51274678 is a deficient number, since it is larger than the sum of its proper divisors (46055786).

51274678 is a wasteful number, since it uses less digits than its factorization.

51274678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 430 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 51274678 is about 7160.6339104859. The cubic root of 51274678 is about 371.5075526180.

The spelling of 51274678 in words is "fifty-one million, two hundred seventy-four thousand, six hundred seventy-eight".