51226278 has 32 divisors (see below), whose sum is σ = 107032320. Its totient is φ = 16328160.

The previous prime is 51226277. The next prime is 51226303. The reversal of 51226278 is 87262215.

51226278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51226271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11143 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (3344760).

Almost surely, 2^51226278 is an apocalyptic number.

51226278 is an abundant number, since it is smaller than the sum of its proper divisors (55806042).

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

51226278 is a wasteful number, since it uses less digits than its factorization.

51226278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012.

The product of its digits is 13440, while the sum is 33.

The square root of 51226278 is about 7157.2535235242. The cubic root of 51226278 is about 371.3906227361.

The spelling of 51226278 in words is "fifty-one million, two hundred twenty-six thousand, two hundred seventy-eight".