51943278 has 16 divisors (see below), whose sum is σ = 103960656. Its totient is φ = 17302080.

The previous prime is 51943267. The next prime is 51943349. The reversal of 51943278 is 87234915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10908 + ... + 14928.

It is an arithmetic number, because the mean of its divisors is an integer number (6497541).

Almost surely, 2^51943278 is an apocalyptic number.

51943278 is an abundant number, since it is smaller than the sum of its proper divisors (52017378).

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

51943278 is a wasteful number, since it uses less digits than its factorization.

51943278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179.

The product of its digits is 60480, while the sum is 39.

The square root of 51943278 is about 7207.1685147497. The cubic root of 51943278 is about 373.1153512427.

The spelling of 51943278 in words is "fifty-one million, nine hundred forty-three thousand, two hundred seventy-eight".