551000610550 has 24 divisors (see below), whose sum is σ = 1103696608896. Its totient is φ = 203446379040.

The previous prime is 551000610547. The next prime is 551000610551. The reversal of 551000610550 is 55016000155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551000610551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423845974 + ... + 423847273.

It is an arithmetic number, because the mean of its divisors is an integer number (45987358704).

Almost surely, 2^551000610550 is an apocalyptic number.

551000610550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551000610550 is an abundant number, since it is smaller than the sum of its proper divisors (552695998346).

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

551000610550 is a wasteful number, since it uses less digits than its factorization.

551000610550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847693272 (or 847693267 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 551000610550 in words is "five hundred fifty-one billion, six hundred ten thousand, five hundred fifty".