55733421 has 8 divisors (see below), whose sum is σ = 75206880. Its totient is φ = 36707792.

The previous prime is 55733417. The next prime is 55733423. The reversal of 55733421 is 12433755.

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 55733421 - 2² = 55733417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55733423) 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, 111666 + ... + 112163.

It is an arithmetic number, because the mean of its divisors is an integer number (9400860).

Almost surely, 2^55733421 is an apocalyptic number.

It is an amenable number.

55733421 is a deficient number, since it is larger than the sum of its proper divisors (19473459).

55733421 is a wasteful number, since it uses less digits than its factorization.

55733421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223915.

The product of its digits is 12600, while the sum is 30.

The square root of 55733421 is about 7465.4819670266. The cubic root of 55733421 is about 381.9781905990.

The spelling of 55733421 in words is "fifty-five million, seven hundred thirty-three thousand, four hundred twenty-one".