545522401252 has 6 divisors (see below), whose sum is σ = 954664202198. Its totient is φ = 272761200624.

The previous prime is 545522401189. The next prime is 545522401309. The reversal of 545522401252 is 252104225545.

It can be written as a sum of positive squares in only one way, i.e., 467494917696 + 78027483556 = 683736^2 + 279334^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68190300153 + ... + 68190300160.

Almost surely, 2^545522401252 is an apocalyptic number.

It is an amenable number.

545522401252 is a deficient number, since it is larger than the sum of its proper divisors (409141800946).

545522401252 is a wasteful number, since it uses less digits than its factorization.

545522401252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136380600317 (or 136380600315 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

Adding to 545522401252 its reverse (252104225545), we get a palindrome (797626626797).

The spelling of 545522401252 in words is "five hundred forty-five billion, five hundred twenty-two million, four hundred one thousand, two hundred fifty-two".