51155633226 has 32 divisors (see below), whose sum is σ = 102694256640. Its totient is φ = 16988148144.

The previous prime is 51155633203. The next prime is 51155633233. The reversal of 51155633226 is 62233655115.

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, 2099751 + ... + 2123973.

It is an arithmetic number, because the mean of its divisors is an integer number (3209195520).

Almost surely, 2^51155633226 is an apocalyptic number.

51155633226 is an abundant number, since it is smaller than the sum of its proper divisors (51538623414).

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

51155633226 is a wasteful number, since it uses less digits than its factorization.

51155633226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25530.

The product of its digits is 162000, while the sum is 39.

The spelling of 51155633226 in words is "fifty-one billion, one hundred fifty-five million, six hundred thirty-three thousand, two hundred twenty-six".