252218563477 has 8 divisors (see below), whose sum is σ = 263712024000. Its totient is φ = 240769056000.

The previous prime is 252218563417. The next prime is 252218563501. The reversal of 252218563477 is 774365812252.

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

It is a cyclic number.

It is not a de Polignac number, because 252218563477 - 2¹⁹ = 252218039189 is a prime.

It is a super-2 number, since 2×252218563477² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252218563417) 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, 10976524 + ... + 10999477.

It is an arithmetic number, because the mean of its divisors is an integer number (32964003000).

Almost surely, 2^252218563477 is an apocalyptic number.

It is an amenable number.

252218563477 is a deficient number, since it is larger than the sum of its proper divisors (11493460523).

252218563477 is a wasteful number, since it uses less digits than its factorization.

252218563477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21976523.

The product of its digits is 5644800, while the sum is 52.

The spelling of 252218563477 in words is "two hundred fifty-two billion, two hundred eighteen million, five hundred sixty-three thousand, four hundred seventy-seven".