545550233550 has 48 divisors (see below), whose sum is σ = 1546245236352. Its totient is φ = 124697196000.

The previous prime is 545550233531. The next prime is 545550233563. The reversal of 545550233550 is 55332055545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

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, 259784776 + ... + 259786875.

It is an arithmetic number, because the mean of its divisors is an integer number (32213442424).

Almost surely, 2^545550233550 is an apocalyptic number.

545550233550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545550233550 is an abundant number, since it is smaller than the sum of its proper divisors (1000695002802).

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

545550233550 is a wasteful number, since it uses less digits than its factorization.

545550233550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519571673 (or 519571668 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 42.

The spelling of 545550233550 in words is "five hundred forty-five billion, five hundred fifty million, two hundred thirty-three thousand, five hundred fifty".