545242401 has 32 divisors (see below), whose sum is σ = 884183040. Its totient is φ = 329331600.

The previous prime is 545242387. The next prime is 545242421. The reversal of 545242401 is 104242545.

It is not a de Polignac number, because 545242401 - 2⁹ = 545241889 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (545242421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89416 + ... + 95318.

It is an arithmetic number, because the mean of its divisors is an integer number (27630720).

Almost surely, 2^545242401 is an apocalyptic number.

It is an amenable number.

545242401 is a deficient number, since it is larger than the sum of its proper divisors (338940639).

545242401 is a wasteful number, since it uses less digits than its factorization.

545242401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234 (or 6228 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 545242401 is about 23350.4261417217. The cubic root of 545242401 is about 816.9520003841.

Adding to 545242401 its reverse (104242545), we get a palindrome (649484946).

The spelling of 545242401 in words is "five hundred forty-five million, two hundred forty-two thousand, four hundred one".