252617655 has 8 divisors (see below), whose sum is σ = 404188272. Its totient is φ = 134729408.

The previous prime is 252617641. The next prime is 252617657. The reversal of 252617655 is 556716252.

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

It is a cyclic number.

It is not a de Polignac number, because 252617655 - 2⁹ = 252617143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252617657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8420574 + ... + 8420603.

It is an arithmetic number, because the mean of its divisors is an integer number (50523534).

Almost surely, 2^252617655 is an apocalyptic number.

252617655 is a deficient number, since it is larger than the sum of its proper divisors (151570617).

252617655 is a wasteful number, since it uses less digits than its factorization.

252617655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16841185.

The product of its digits is 126000, while the sum is 39.

The square root of 252617655 is about 15893.9502641728. The cubic root of 252617655 is about 632.1515878103.

The spelling of 252617655 in words is "two hundred fifty-two million, six hundred seventeen thousand, six hundred fifty-five".