546525221 has 4 divisors (see below), whose sum is σ = 596209344. Its totient is φ = 496841100.

The previous prime is 546525211. The next prime is 546525251. The reversal of 546525221 is 122525645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 546525221 - 2⁶ = 546525157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546525211) 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, 24842045 + ... + 24842066.

It is an arithmetic number, because the mean of its divisors is an integer number (149052336).

Almost surely, 2^546525221 is an apocalyptic number.

It is an amenable number.

546525221 is a deficient number, since it is larger than the sum of its proper divisors (49684123).

546525221 is a wasteful number, since it uses less digits than its factorization.

546525221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49684122.

The product of its digits is 24000, while the sum is 32.

The square root of 546525221 is about 23377.8788815410. The cubic root of 546525221 is about 817.5921936506.

The spelling of 546525221 in words is "five hundred forty-six million, five hundred twenty-five thousand, two hundred twenty-one".