51022886 has 4 divisors (see below), whose sum is σ = 76534332. Its totient is φ = 25511442.

The previous prime is 51022883. The next prime is 51022891. The reversal of 51022886 is 68822015.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51022883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12755720 + ... + 12755723.

It is an arithmetic number, because the mean of its divisors is an integer number (19133583).

Almost surely, 2^51022886 is an apocalyptic number.

51022886 is a deficient number, since it is larger than the sum of its proper divisors (25511446).

51022886 is a wasteful number, since it uses less digits than its factorization.

51022886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25511445.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 51022886 is about 7143.0305893227. The cubic root of 51022886 is about 370.8984399539.

The spelling of 51022886 in words is "fifty-one million, twenty-two thousand, eight hundred eighty-six".