551211492948 has 12 divisors (see below), whose sum is σ = 1286160150240. Its totient is φ = 183737164312.

The previous prime is 551211492941. The next prime is 551211492959. The reversal of 551211492948 is 849294112155.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 551211492948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551211492941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22967145528 + ... + 22967145551.

It is an arithmetic number, because the mean of its divisors is an integer number (107180012520).

Almost surely, 2^551211492948 is an apocalyptic number.

It is an amenable number.

551211492948 is an abundant number, since it is smaller than the sum of its proper divisors (734948657292).

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

551211492948 is a wasteful number, since it uses less digits than its factorization.

551211492948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45934291086 (or 45934291084 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 51.

The spelling of 551211492948 in words is "five hundred fifty-one billion, two hundred eleven million, four hundred ninety-two thousand, nine hundred forty-eight".