546220451 has 4 divisors (see below), whose sum is σ = 624251952. Its totient is φ = 468188952.

The previous prime is 546220397. The next prime is 546220453. The reversal of 546220451 is 154022645.

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

It is a de Polignac number, because none of the positive numbers 2^k-546220451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546220453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39015740 + ... + 39015753.

It is an arithmetic number, because the mean of its divisors is an integer number (156062988).

Almost surely, 2^546220451 is an apocalyptic number.

546220451 is a deficient number, since it is larger than the sum of its proper divisors (78031501).

546220451 is an equidigital number, since it uses as much as digits as its factorization.

546220451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78031500.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 546220451 is about 23371.3596309671. The cubic root of 546220451 is about 817.4401885247.

The spelling of 546220451 in words is "five hundred forty-six million, two hundred twenty thousand, four hundred fifty-one".