455532421 has 8 divisors (see below), whose sum is σ = 459122688. Its totient is φ = 451950000.

The previous prime is 455532409. The next prime is 455532437. The reversal of 455532421 is 124235554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 455532421 - 2²³ = 447143813 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 (455532481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172491 + ... + 175111.

It is an arithmetic number, because the mean of its divisors is an integer number (57390336).

Almost surely, 2^455532421 is an apocalyptic number.

It is an amenable number.

455532421 is a deficient number, since it is larger than the sum of its proper divisors (3590267).

455532421 is a wasteful number, since it uses less digits than its factorization.

455532421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923.

The product of its digits is 24000, while the sum is 31.

The square root of 455532421 is about 21343.2054996432. The cubic root of 455532421 is about 769.4370546591.

Adding to 455532421 its reverse (124235554), we get a palindrome (579767975).

It can be divided in two parts, 45553 and 2421, that added together give a palindrome (47974).

The spelling of 455532421 in words is "four hundred fifty-five million, five hundred thirty-two thousand, four hundred twenty-one".