51915226 has 8 divisors (see below), whose sum is σ = 84952224. Its totient is φ = 23597820.

The previous prime is 51915217. The next prime is 51915247. The reversal of 51915226 is 62251915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179870 + ... + 1179913.

It is an arithmetic number, because the mean of its divisors is an integer number (10619028).

Almost surely, 2^51915226 is an apocalyptic number.

51915226 is a deficient number, since it is larger than the sum of its proper divisors (33036998).

51915226 is a wasteful number, since it uses less digits than its factorization.

51915226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359796.

The product of its digits is 5400, while the sum is 31.

The square root of 51915226 is about 7205.2221339803. Note that the first 3 decimals coincide. The cubic root of 51915226 is about 373.0481720878.

The spelling of 51915226 in words is "fifty-one million, nine hundred fifteen thousand, two hundred twenty-six".