52281718 has 4 divisors (see below), whose sum is σ = 78422580. Its totient is φ = 26140858.

The previous prime is 52281701. The next prime is 52281731. The reversal of 52281718 is 81718225.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13070428 + ... + 13070431.

It is an arithmetic number, because the mean of its divisors is an integer number (19605645).

Almost surely, 2^52281718 is an apocalyptic number.

52281718 is a deficient number, since it is larger than the sum of its proper divisors (26140862).

52281718 is a wasteful number, since it uses less digits than its factorization.

52281718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26140861.

The product of its digits is 8960, while the sum is 34.

The square root of 52281718 is about 7230.6097944779. The cubic root of 52281718 is about 373.9239505260.

The spelling of 52281718 in words is "fifty-two million, two hundred eighty-one thousand, seven hundred eighteen".