252768219155 has 8 divisors (see below), whose sum is σ = 303518451552. Its totient is φ = 202083516288.

The previous prime is 252768219131. The next prime is 252768219157. The reversal of 252768219155 is 551912867252.

It is a happy number.

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 252768219155 - 2⁶ = 252768219091 is a prime.

It is a super-2 number, since 2×252768219155² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252768219097 and 252768219106.

It is not an unprimeable number, because it can be changed into a prime (252768219157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16373894 + ... + 16389323.

It is an arithmetic number, because the mean of its divisors is an integer number (37939806444).

Almost surely, 2^252768219155 is an apocalyptic number.

252768219155 is a deficient number, since it is larger than the sum of its proper divisors (50750232397).

252768219155 is a wasteful number, since it uses less digits than its factorization.

252768219155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32764765.

The product of its digits is 3024000, while the sum is 53.

The spelling of 252768219155 in words is "two hundred fifty-two billion, seven hundred sixty-eight million, two hundred nineteen thousand, one hundred fifty-five".