51774238 has 16 divisors (see below), whose sum is σ = 79901136. Its totient is φ = 25151040.

The previous prime is 51774223. The next prime is 51774253. The reversal of 51774238 is 83247715.

It is an interprime number because it is at equal distance from previous prime (51774223) and next prime (51774253).

It is a junction number, because it is equal to n+sod(n) for n = 51774197 and 51774206.

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 7 ways as a sum of consecutive naturals, for example, 7570 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (4993821).

Almost surely, 2^51774238 is an apocalyptic number.

51774238 is a deficient number, since it is larger than the sum of its proper divisors (28126898).

51774238 is a wasteful number, since it uses less digits than its factorization.

51774238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259.

The product of its digits is 47040, while the sum is 37.

The square root of 51774238 is about 7195.4317452117. The cubic root of 51774238 is about 372.7101659230.

The spelling of 51774238 in words is "fifty-one million, seven hundred seventy-four thousand, two hundred thirty-eight".