551215420050 has 48 divisors (see below), whose sum is σ = 1367079188832. Its totient is φ = 146983795200.

The previous prime is 551215420031. The next prime is 551215420061. The reversal of 551215420050 is 50024512155.

551215420050 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

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, 3597097 + ... + 3747203.

It is an arithmetic number, because the mean of its divisors is an integer number (28480816434).

Almost surely, 2^551215420050 is an apocalyptic number.

551215420050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551215420050 is an abundant number, since it is smaller than the sum of its proper divisors (815863768782).

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

551215420050 is a wasteful number, since it uses less digits than its factorization.

551215420050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174603 (or 174598 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 551215420050 in words is "five hundred fifty-one billion, two hundred fifteen million, four hundred twenty thousand, fifty".