252780275549 has 8 divisors (see below), whose sum is σ = 263866600512. Its totient is φ = 241701940480.

The previous prime is 252780275509. The next prime is 252780275569. The reversal of 252780275549 is 945572087252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252780275549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252780275494 and 252780275503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252780275509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932767 + ... + 2059404.

It is an arithmetic number, because the mean of its divisors is an integer number (32983325064).

Almost surely, 2^252780275549 is an apocalyptic number.

It is an amenable number.

252780275549 is a deficient number, since it is larger than the sum of its proper divisors (11086324963).

252780275549 is a wasteful number, since it uses less digits than its factorization.

252780275549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994947.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 252780275549 in words is "two hundred fifty-two billion, seven hundred eighty million, two hundred seventy-five thousand, five hundred forty-nine".