545215405250 has 16 divisors (see below), whose sum is σ = 1020643239096. Its totient is φ = 218086162000.

The previous prime is 545215405219. The next prime is 545215405309. The reversal of 545215405250 is 52504512545.

It can be written as a sum of positive squares in 4 ways, for example, as 29824944601 + 515390460649 = 172699^2 + 717907^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090430561 + ... + 1090431060.

Almost surely, 2^545215405250 is an apocalyptic number.

545215405250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545215405250 is a deficient number, since it is larger than the sum of its proper divisors (475427833846).

545215405250 is a wasteful number, since it uses less digits than its factorization.

545215405250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180861638 (or 2180861628 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 38.

Adding to 545215405250 its reverse (52504512545), we get a palindrome (597719917795).

The spelling of 545215405250 in words is "five hundred forty-five billion, two hundred fifteen million, four hundred five thousand, two hundred fifty".