551557250000 has 140 divisors (see below), whose sum is σ = 1393877783136. Its totient is φ = 211028400000.

The previous prime is 551557249981. The next prime is 551557250003. The reversal of 551557250000 is 52755155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551557250003) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5702039 + ... + 5797961.

Almost surely, 2^551557250000 is an apocalyptic number.

551557250000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551557250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696938891568).

551557250000 is an abundant number, since it is smaller than the sum of its proper divisors (842320533136).

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

551557250000 is an frugal number, since it uses more digits than its factorization.

551557250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95984 (or 95953 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 35.

The spelling of 551557250000 in words is "five hundred fifty-one billion, five hundred fifty-seven million, two hundred fifty thousand".