551343400050 has 48 divisors (see below), whose sum is σ = 1367377294752. Its totient is φ = 147019996800.

The previous prime is 551343400043. The next prime is 551343400063. The reversal of 551343400050 is 50004343155.

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

It is a junction number, because it is equal to n+sod(n) for n = 551343399990 and 551343400017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7738590 + ... + 7809510.

It is an arithmetic number, because the mean of its divisors is an integer number (28487026974).

Almost surely, 2^551343400050 is an apocalyptic number.

551343400050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551343400050 is an abundant number, since it is smaller than the sum of its proper divisors (816033894702).

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

551343400050 is a wasteful number, since it uses less digits than its factorization.

551343400050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122763 (or 122758 counting only the distinct ones).

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

The spelling of 551343400050 in words is "five hundred fifty-one billion, three hundred forty-three million, four hundred thousand, fifty".