55488109 has 8 divisors (see below), whose sum is σ = 57363968. Its totient is φ = 53617680.

The previous prime is 55488091. The next prime is 55488131. The reversal of 55488109 is 90188455.

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 55488109 - 2¹³ = 55479917 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 (55488149) 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, 37624 + ... + 39070.

It is an arithmetic number, because the mean of its divisors is an integer number (7170496).

Almost surely, 2^55488109 is an apocalyptic number.

It is an amenable number.

55488109 is a deficient number, since it is larger than the sum of its proper divisors (1875859).

55488109 is a wasteful number, since it uses less digits than its factorization.

55488109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 55488109 is about 7449.0340984587. The cubic root of 55488109 is about 381.4169375886.

The spelling of 55488109 in words is "fifty-five million, four hundred eighty-eight thousand, one hundred nine".