551423532000 has 192 divisors, whose sum is σ = 1970687916288. Its totient is φ = 133678400000.

The previous prime is 551423531987. The next prime is 551423532067. The reversal of 551423532000 is 235324155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1956726 + ... + 2220725.

It is an arithmetic number, because the mean of its divisors is an integer number (10263999564).

Almost surely, 2^551423532000 is an apocalyptic number.

551423532000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551423532000 is an abundant number, since it is smaller than the sum of its proper divisors (1419264384288).

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

551423532000 is a wasteful number, since it uses less digits than its factorization.

551423532000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177490 (or 4177472 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 551423532000 its reverse (235324155), we get a palindrome (551658856155).

The spelling of 551423532000 in words is "five hundred fifty-one billion, four hundred twenty-three million, five hundred thirty-two thousand".