546621451 has 4 divisors (see below), whose sum is σ = 578775672. Its totient is φ = 514467232.

The previous prime is 546621437. The next prime is 546621457. The reversal of 546621451 is 154126645.

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

It is a cyclic number.

It is not a de Polignac number, because 546621451 - 2¹³ = 546613259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546621457) 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, 16077085 + ... + 16077118.

It is an arithmetic number, because the mean of its divisors is an integer number (144693918).

Almost surely, 2^546621451 is an apocalyptic number.

546621451 is a deficient number, since it is larger than the sum of its proper divisors (32154221).

546621451 is a wasteful number, since it uses less digits than its factorization.

546621451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32154220.

The product of its digits is 28800, while the sum is 34.

The square root of 546621451 is about 23379.9369331912. The cubic root of 546621451 is about 817.6401769681.

The spelling of 546621451 in words is "five hundred forty-six million, six hundred twenty-one thousand, four hundred fifty-one".