252555986998 has 16 divisors (see below), whose sum is σ = 432984384000. Its totient is φ = 108230464296.

The previous prime is 252555986957. The next prime is 252555986999. The reversal of 252555986998 is 899689555252.

It is a self number, because there is not a number n which added to its sum of digits gives 252555986998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252555986999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448336 + ... + 840307.

It is an arithmetic number, because the mean of its divisors is an integer number (27061524000).

Almost surely, 2^252555986998 is an apocalyptic number.

252555986998 is a deficient number, since it is larger than the sum of its proper divisors (180428397002).

252555986998 is a wasteful number, since it uses less digits than its factorization.

252555986998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302651.

The product of its digits is 699840000, while the sum is 73.

The spelling of 252555986998 in words is "two hundred fifty-two billion, five hundred fifty-five million, nine hundred eighty-six thousand, nine hundred ninety-eight".