252801666254 has 4 divisors (see below), whose sum is σ = 379202499384. Its totient is φ = 126400833126.

The previous prime is 252801666209. The next prime is 252801666277. The reversal of 252801666254 is 452666108252.

252801666254 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 252801666199 and 252801666208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63200416562 + ... + 63200416565.

It is an arithmetic number, because the mean of its divisors is an integer number (94800624846).

Almost surely, 2^252801666254 is an apocalyptic number.

252801666254 is a deficient number, since it is larger than the sum of its proper divisors (126400833130).

252801666254 is a wasteful number, since it uses less digits than its factorization.

252801666254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126400833129.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 252801666254 in words is "two hundred fifty-two billion, eight hundred one million, six hundred sixty-six thousand, two hundred fifty-four".