551207226570 has 512 divisors, whose sum is σ = 1903604613120. Its totient is φ = 98391490560.

The previous prime is 551207226527. The next prime is 551207226617. The reversal of 551207226570 is 75622702155.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 25544746 + ... + 25566314.

It is an arithmetic number, because the mean of its divisors is an integer number (3717977760).

Almost surely, 2^551207226570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551207226570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951802306560).

551207226570 is an abundant number, since it is smaller than the sum of its proper divisors (1352397386550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551207226570 is a wasteful number, since it uses less digits than its factorization.

551207226570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21670.

The product of its (nonzero) digits is 294000, while the sum is 42.

It can be divided in two parts, 551207 and 226570, that added together give a palindrome (777777).

The spelling of 551207226570 in words is "five hundred fifty-one billion, two hundred seven million, two hundred twenty-six thousand, five hundred seventy".