545328901 has 4 divisors (see below), whose sum is σ = 587277292. Its totient is φ = 503380512.

The previous prime is 545328877. The next prime is 545328913. The reversal of 545328901 is 109823545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 369792900 + 175536001 = 19230^2 + 13249^2 .

It is a cyclic number.

It is not a de Polignac number, because 545328901 - 2⁵ = 545328869 is a prime.

It is a super-2 number, since 2×545328901² = 594767220531735602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545328961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20974176 + ... + 20974201.

It is an arithmetic number, because the mean of its divisors is an integer number (146819323).

Almost surely, 2^545328901 is an apocalyptic number.

It is an amenable number.

545328901 is a deficient number, since it is larger than the sum of its proper divisors (41948391).

545328901 is a wasteful number, since it uses less digits than its factorization.

545328901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41948390.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 545328901 is about 23352.2782828571. The cubic root of 545328901 is about 816.9951998927.

The spelling of 545328901 in words is "five hundred forty-five million, three hundred twenty-eight thousand, nine hundred one".