51226040305656 has 96 divisors (see below), whose sum is σ = 146920142640960. Its totient is φ = 16068514461696.

The previous prime is 51226040305619. The next prime is 51226040305667. The reversal of 51226040305656 is 65650304062215.

51226040305656 is a `hidden beast` number, since 5 + 1 + 2 + 2 + 604 + 0 + 30 + 5 + 6 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5082636 + ... + 11326308.

It is an arithmetic number, because the mean of its divisors is an integer number (1530418152510).

Almost surely, 2^{51226040305656} is an apocalyptic number.

It is an amenable number.

51226040305656 is an abundant number, since it is smaller than the sum of its proper divisors (95694102335304).

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

51226040305656 is a wasteful number, since it uses less digits than its factorization.

51226040305656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250405 (or 6250398 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 51226040305656 in words is "fifty-one trillion, two hundred twenty-six billion, forty million, three hundred five thousand, six hundred fifty-six".