52281719 has 16 divisors (see below), whose sum is σ = 61329408. Its totient is φ = 43638912.

The previous prime is 52281701. The next prime is 52281731. The reversal of 52281719 is 91718225.

It is a cyclic number.

It is not a de Polignac number, because 52281719 - 2¹² = 52277623 is a prime.

It is a super-2 number, since 2×52281719² = 5466756283189922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52281769) 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, 120527 + ... + 120959.

It is an arithmetic number, because the mean of its divisors is an integer number (3833088).

Almost surely, 2^52281719 is an apocalyptic number.

52281719 is a deficient number, since it is larger than the sum of its proper divisors (9047689).

52281719 is a wasteful number, since it uses less digits than its factorization.

52281719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its digits is 10080, while the sum is 35.

The square root of 52281719 is about 7230.6098636284. The cubic root of 52281719 is about 373.9239529100.

The spelling of 52281719 in words is "fifty-two million, two hundred eighty-one thousand, seven hundred nineteen".