252528052778 has 8 divisors (see below), whose sum is σ = 378833581668. Its totient is φ = 126250192224.

The previous prime is 252528052769. The next prime is 252528052787. The reversal of 252528052778 is 877250825252.

252528052778 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 (252528052769) and next prime (252528052787).

It can be written as a sum of positive squares in 2 ways, for example, as 213487430209 + 39040622569 = 462047^2 + 197587^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6894251 + ... + 6930782.

Almost surely, 2^252528052778 is an apocalyptic number.

252528052778 is a deficient number, since it is larger than the sum of its proper divisors (126305528890).

252528052778 is a wasteful number, since it uses less digits than its factorization.

252528052778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13834168.

The product of its (nonzero) digits is 6272000, while the sum is 53.

The spelling of 252528052778 in words is "two hundred fifty-two billion, five hundred twenty-eight million, fifty-two thousand, seven hundred seventy-eight".