252217534 has 8 divisors (see below), whose sum is σ = 378564840. Its totient is φ = 126029256.

The previous prime is 252217531. The next prime is 252217549. The reversal of 252217534 is 435712252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×252217534² = 127227368914082312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252217496 and 252217505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252217531) 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 in 3 ways as a sum of consecutive naturals, for example, 35709 + ... + 42184.

It is an arithmetic number, because the mean of its divisors is an integer number (47320605).

Almost surely, 2^252217534 is an apocalyptic number.

252217534 is a deficient number, since it is larger than the sum of its proper divisors (126347306).

252217534 is a wasteful number, since it uses less digits than its factorization.

252217534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79514.

The product of its digits is 16800, while the sum is 31.

The square root of 252217534 is about 15881.3580653545. The cubic root of 252217534 is about 631.8176565635.

Adding to 252217534 its reverse (435712252), we get a palindrome (687929786).

The spelling of 252217534 in words is "two hundred fifty-two million, two hundred seventeen thousand, five hundred thirty-four".