547520421 has 16 divisors (see below), whose sum is σ = 835487744. Its totient is φ = 312429744.

The previous prime is 547520381. The next prime is 547520431. The reversal of 547520421 is 124025745.

547520421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 547520421 - 2¹⁰ = 547519397 is a prime.

It is a super-2 number, since 2×547520421² = 599557222824034482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547520431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2665 + ... + 33198.

It is an arithmetic number, because the mean of its divisors is an integer number (52217984).

Almost surely, 2^547520421 is an apocalyptic number.

It is an amenable number.

547520421 is a deficient number, since it is larger than the sum of its proper divisors (287967323).

547520421 is a wasteful number, since it uses less digits than its factorization.

547520421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36600.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 547520421 is about 23399.1542795888. The cubic root of 547520421 is about 818.0881600054.

The spelling of 547520421 in words is "five hundred forty-seven million, five hundred twenty thousand, four hundred twenty-one".