51366022 has 8 divisors (see below), whose sum is σ = 77182056. Its totient is φ = 25638672.

The previous prime is 51366011. The next prime is 51366023. The reversal of 51366022 is 22066315.

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

It is a super-2 number, since 2×51366022² = 5276936432208968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51366023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20703 + ... + 23050.

It is an arithmetic number, because the mean of its divisors is an integer number (9647757).

Almost surely, 2^51366022 is an apocalyptic number.

51366022 is a deficient number, since it is larger than the sum of its proper divisors (25816034).

51366022 is a wasteful number, since it uses less digits than its factorization.

51366022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44342.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 51366022 is about 7167.0092786322. The cubic root of 51366022 is about 371.7280308723.

The spelling of 51366022 in words is "fifty-one million, three hundred sixty-six thousand, twenty-two".