55450533 has 8 divisors (see below), whose sum is σ = 73969600. Its totient is φ = 36949248.

The previous prime is 55450519. The next prime is 55450559. The reversal of 55450533 is 33505455.

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

It is not a de Polignac number, because 55450533 - 2⁴ = 55450517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55450533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55450333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7173 + ... + 12741.

It is an arithmetic number, because the mean of its divisors is an integer number (9246200).

Almost surely, 2^55450533 is an apocalyptic number.

It is an amenable number.

55450533 is a deficient number, since it is larger than the sum of its proper divisors (18519067).

55450533 is a wasteful number, since it uses less digits than its factorization.

55450533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8891.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 55450533 is about 7446.5114651090. The cubic root of 55450533 is about 381.3308208841.

Adding to 55450533 its reverse (33505455), we get a palindrome (88955988).

The spelling of 55450533 in words is "fifty-five million, four hundred fifty thousand, five hundred thirty-three".