252220204553 has 4 divisors (see below), whose sum is σ = 252221481600. Its totient is φ = 252218927508.

The previous prime is 252220204541. The next prime is 252220204597. The reversal of 252220204553 is 355402022252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252220204553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252220204853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272225 + ... + 760622.

It is an arithmetic number, because the mean of its divisors is an integer number (63055370400).

Almost surely, 2^252220204553 is an apocalyptic number.

It is an amenable number.

252220204553 is a deficient number, since it is larger than the sum of its proper divisors (1277047).

252220204553 is a wasteful number, since it uses less digits than its factorization.

252220204553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277046.

The product of its (nonzero) digits is 48000, while the sum is 32.

The spelling of 252220204553 in words is "two hundred fifty-two billion, two hundred twenty million, two hundred four thousand, five hundred fifty-three".