252618797 has 8 divisors (see below), whose sum is σ = 261507000. Its totient is φ = 243742464.

The previous prime is 252618791. The next prime is 252618803. The reversal of 252618797 is 797816252.

It is a happy number.

252618797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252618791) and next prime (252618803).

It can be written as a sum of positive squares in 4 ways, for example, as 17732521 + 234886276 = 4211^2 + 15326^2 .

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 252618797 - 2¹² = 252614701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252618791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81329 + ... + 84377.

It is an arithmetic number, because the mean of its divisors is an integer number (32688375).

Almost surely, 2^252618797 is an apocalyptic number.

It is an amenable number.

252618797 is a deficient number, since it is larger than the sum of its proper divisors (8888203).

252618797 is a wasteful number, since it uses less digits than its factorization.

252618797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5935.

The product of its digits is 423360, while the sum is 47.

The square root of 252618797 is about 15893.9861897511. The cubic root of 252618797 is about 632.1525403909.

The spelling of 252618797 in words is "two hundred fifty-two million, six hundred eighteen thousand, seven hundred ninety-seven".