545025423321 has 12 divisors (see below), whose sum is σ = 787292670372. Its totient is φ = 363334716576.

The previous prime is 545025423317. The next prime is 545025423347. The reversal of 545025423321 is 123324520545.

545025423321 is a `hidden beast` number, since 54 + 502 + 54 + 2 + 33 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 212599377225 + 332426046096 = 461085^2 + 576564^2 .

It is not a de Polignac number, because 545025423321 - 2² = 545025423317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545025443321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073346 + ... + 1497371.

It is an arithmetic number, because the mean of its divisors is an integer number (65607722531).

Almost surely, 2^545025423321 is an apocalyptic number.

It is an amenable number.

545025423321 is a deficient number, since it is larger than the sum of its proper divisors (242267247051).

545025423321 is a wasteful number, since it uses less digits than its factorization.

545025423321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594280 (or 2594277 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 545025423321 its reverse (123324520545), we get a palindrome (668349943866).

The spelling of 545025423321 in words is "five hundred forty-five billion, twenty-five million, four hundred twenty-three thousand, three hundred twenty-one".