252780068 has 6 divisors (see below), whose sum is σ = 442365126. Its totient is φ = 126390032.

The previous prime is 252780061. The next prime is 252780103. The reversal of 252780068 is 860087252.

It can be written as a sum of positive squares in only one way, i.e., 246113344 + 6666724 = 15688^2 + 2582^2 .

It is not an unprimeable number, because it can be changed into a prime (252780061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31597505 + ... + 31597512.

It is an arithmetic number, because the mean of its divisors is an integer number (73727521).

Almost surely, 2^252780068 is an apocalyptic number.

It is an amenable number.

252780068 is a deficient number, since it is larger than the sum of its proper divisors (189585058).

252780068 is a wasteful number, since it uses less digits than its factorization.

252780068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63195021 (or 63195019 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 252780068 is about 15899.0587142761. The cubic root of 252780068 is about 632.2870331349.

The spelling of 252780068 in words is "two hundred fifty-two million, seven hundred eighty thousand, sixty-eight".