545221242125 has 48 divisors (see below), whose sum is σ = 791811437040. Its totient is φ = 373731993600.

The previous prime is 545221242103. The next prime is 545221242151. The reversal of 545221242125 is 521242122545.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1894512676 + 543326729449 = 43526^2 + 737107^2 .

It is not a de Polignac number, because 545221242125 - 2²⁶ = 545154133261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18905717 + ... + 18934533.

It is an arithmetic number, because the mean of its divisors is an integer number (16496071605).

Almost surely, 2^545221242125 is an apocalyptic number.

It is an amenable number.

545221242125 is a deficient number, since it is larger than the sum of its proper divisors (246590194915).

545221242125 is a wasteful number, since it uses less digits than its factorization.

545221242125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31935 (or 31918 counting only the distinct ones).

The product of its digits is 64000, while the sum is 35.

The spelling of 545221242125 in words is "five hundred forty-five billion, two hundred twenty-one million, two hundred forty-two thousand, one hundred twenty-five".