51742266 has 16 divisors (see below), whose sum is σ = 103560384. Its totient is φ = 17234784.

The previous prime is 51742261. The next prime is 51742267. The reversal of 51742266 is 66224715.

It is not an unprimeable number, because it can be changed into a prime (51742261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9795 + ... + 14121.

It is an arithmetic number, because the mean of its divisors is an integer number (6472524).

Almost surely, 2^51742266 is an apocalyptic number.

51742266 is an abundant number, since it is smaller than the sum of its proper divisors (51818118).

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

51742266 is a wasteful number, since it uses less digits than its factorization.

51742266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325.

The product of its digits is 20160, while the sum is 33.

The square root of 51742266 is about 7193.2097147240. The cubic root of 51742266 is about 372.6334305709.

The spelling of 51742266 in words is "fifty-one million, seven hundred forty-two thousand, two hundred sixty-six".