551172052212 has 24 divisors (see below), whose sum is σ = 1290457441056. Its totient is φ = 183096971808.

The previous prime is 551172052139. The next prime is 551172052243. The reversal of 551172052212 is 212250271155.

It is a super-2 number, since 2×551172052212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78377038 + ... + 78384069.

It is an arithmetic number, because the mean of its divisors is an integer number (53769060044).

Almost surely, 2^551172052212 is an apocalyptic number.

It is an amenable number.

551172052212 is an abundant number, since it is smaller than the sum of its proper divisors (739285388844).

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

551172052212 is a wasteful number, since it uses less digits than its factorization.

551172052212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156761407 (or 156761405 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The spelling of 551172052212 in words is "five hundred fifty-one billion, one hundred seventy-two million, fifty-two thousand, two hundred twelve".