51942918 has 32 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 16577280.

The previous prime is 51942911. The next prime is 51942991. The reversal of 51942918 is 81924915.

51942918 is nontrivially palindromic in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51942911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16603 + ... + 19481.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^51942918 is an apocalyptic number.

51942918 is an abundant number, since it is smaller than the sum of its proper divisors (56437242).

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

51942918 is a wasteful number, since it uses less digits than its factorization.

51942918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its digits is 25920, while the sum is 39.

The square root of 51942918 is about 7207.1435395724. The cubic root of 51942918 is about 373.1144892651.

The spelling of 51942918 in words is "fifty-one million, nine hundred forty-two thousand, nine hundred eighteen".