551212025233 has 4 divisors (see below), whose sum is σ = 551294069760. Its totient is φ = 551129980708.

The previous prime is 551212025207. The next prime is 551212025239. The reversal of 551212025233 is 332520212155.

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-551212025233 is a prime.

It is a super-2 number, since 2×551212025233² (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 = 551212025195 and 551212025204.

It is not an unprimeable number, because it can be changed into a prime (551212025239) 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, 41012185 + ... + 41025622.

It is an arithmetic number, because the mean of its divisors is an integer number (137823517440).

Almost surely, 2^551212025233 is an apocalyptic number.

It is an amenable number.

551212025233 is a deficient number, since it is larger than the sum of its proper divisors (82044527).

551212025233 is an equidigital number, since it uses as much as digits as its factorization.

551212025233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82044526.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 551212025233 its reverse (332520212155), we get a palindrome (883732237388).

The spelling of 551212025233 in words is "five hundred fifty-one billion, two hundred twelve million, twenty-five thousand, two hundred thirty-three".