51346278 has 32 divisors (see below), whose sum is σ = 116536320. Its totient is φ = 16750440.

The previous prime is 51346259. The next prime is 51346283. The reversal of 51346278 is 87264315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7578 + ... + 12653.

It is an arithmetic number, because the mean of its divisors is an integer number (3641760).

Almost surely, 2^51346278 is an apocalyptic number.

51346278 is an abundant number, since it is smaller than the sum of its proper divisors (65190042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51346278 is a wasteful number, since it uses less digits than its factorization.

51346278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20289 (or 20283 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51346278 is about 7165.6317237212. The cubic root of 51346278 is about 371.6803966677.

The spelling of 51346278 in words is "fifty-one million, three hundred forty-six thousand, two hundred seventy-eight".