52170724 has 6 divisors (see below), whose sum is σ = 91298774. Its totient is φ = 26085360.

The previous prime is 52170721. The next prime is 52170733. The reversal of 52170724 is 42707125.

52170724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51984100 + 186624 = 7210^2 + 432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52170692 and 52170701.

It is not an unprimeable number, because it can be changed into a prime (52170721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521337 + ... + 6521344.

Almost surely, 2^52170724 is an apocalyptic number.

It is an amenable number.

52170724 is a deficient number, since it is larger than the sum of its proper divisors (39128050).

52170724 is a wasteful number, since it uses less digits than its factorization.

52170724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042685 (or 13042683 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 52170724 is about 7222.9304302340. The cubic root of 52170724 is about 373.6591497395.

Adding to 52170724 its reverse (42707125), we get a palindrome (94877849).

It can be divided in two parts, 521707 and 24, that added together give a triangular number (521731 = T₁₀₂₁).

The spelling of 52170724 in words is "fifty-two million, one hundred seventy thousand, seven hundred twenty-four".