543225501 has 32 divisors (see below), whose sum is σ = 990501120. Its totient is φ = 286535232.

The previous prime is 543225499. The next prime is 543225509. The reversal of 543225501 is 105522345.

It is a happy number.

It is not a de Polignac number, because 543225501 - 2¹ = 543225499 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543225509) 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, 108090 + ... + 113003.

It is an arithmetic number, because the mean of its divisors is an integer number (30953160).

Almost surely, 2^543225501 is an apocalyptic number.

It is an amenable number.

543225501 is a deficient number, since it is larger than the sum of its proper divisors (447275619).

543225501 is a wasteful number, since it uses less digits than its factorization.

543225501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221122 (or 221116 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 543225501 is about 23307.1984802979. The cubic root of 543225501 is about 815.9434297937.

Adding to 543225501 its reverse (105522345), we get a palindrome (648747846).

The spelling of 543225501 in words is "five hundred forty-three million, two hundred twenty-five thousand, five hundred one".