55440461 has 8 divisors (see below), whose sum is σ = 58639200. Its totient is φ = 52269840.

The previous prime is 55440439. The next prime is 55440509. The reversal of 55440461 is 16404455.

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 55440461 - 2¹⁴ = 55424077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55440661) 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, 2906 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (7329900).

Almost surely, 2^55440461 is an apocalyptic number.

It is an amenable number.

55440461 is a deficient number, since it is larger than the sum of its proper divisors (3198739).

55440461 is a wasteful number, since it uses less digits than its factorization.

55440461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14059.

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

The square root of 55440461 is about 7445.8351445624. The cubic root of 55440461 is about 381.3077312557.

The spelling of 55440461 in words is "fifty-five million, four hundred forty thousand, four hundred sixty-one".