551401523252 has 24 divisors (see below), whose sum is σ = 979456966152. Its totient is φ = 271566604800.

The previous prime is 551401523221. The next prime is 551401523261. The reversal of 551401523252 is 252325104155.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16241973136 + 535159550116 = 127444^2 + 731546^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018499 + ... + 1462922.

It is an arithmetic number, because the mean of its divisors is an integer number (40810706923).

Almost surely, 2^551401523252 is an apocalyptic number.

It is an amenable number.

551401523252 is a deficient number, since it is larger than the sum of its proper divisors (428055442900).

551401523252 is a wasteful number, since it uses less digits than its factorization.

551401523252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482259 (or 2482257 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 551401523252 in words is "five hundred fifty-one billion, four hundred one million, five hundred twenty-three thousand, two hundred fifty-two".