545545502252550 has 72 divisors (see below), whose sum is σ = 1465714008382104. Its totient is φ = 145477302602880.

The previous prime is 545545502252431. The next prime is 545545502252567. The reversal of 545545502252550 is 55252205545545.

545545502252550 is a `hidden beast` number, since 5 + 4 + 5 + 5 + 45 + 5 + 0 + 22 + 525 + 50 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 37854634 + ... + 50240066.

It is an arithmetic number, because the mean of its divisors is an integer number (20357139005307).

Almost surely, 2^{545545502252550} is an apocalyptic number.

545545502252550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545545502252550 is an abundant number, since it is smaller than the sum of its proper divisors (920168506129554).

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

545545502252550 is a wasteful number, since it uses less digits than its factorization.

545545502252550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12483334 (or 12483326 counting only the distinct ones).

The product of its (nonzero) digits is 50000000, while the sum is 54.

The spelling of 545545502252550 in words is "five hundred forty-five trillion, five hundred forty-five billion, five hundred two million, two hundred fifty-two thousand, five hundred fifty".