55051409 has 8 divisors (see below), whose sum is σ = 63096960. Its totient is φ = 47051136.

The previous prime is 55051391. The next prime is 55051427. The reversal of 55051409 is 90415055.

It is an interprime number because it is at equal distance from previous prime (55051391) and next prime (55051427).

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 55051409 - 2²⁰ = 54002833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55051439) 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, 8669 + ... + 13610.

It is an arithmetic number, because the mean of its divisors is an integer number (7887120).

Almost surely, 2^55051409 is an apocalyptic number.

It is an amenable number.

55051409 is a deficient number, since it is larger than the sum of its proper divisors (8045551).

55051409 is a wasteful number, since it uses less digits than its factorization.

55051409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22639.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 55051409 is about 7419.6636716229. The cubic root of 55051409 is about 380.4136976525.

The spelling of 55051409 in words is "fifty-five million, fifty-one thousand, four hundred nine".