55488455 has 32 divisors (see below), whose sum is σ = 79142400. Its totient is φ = 36892800.

The previous prime is 55488449. The next prime is 55488487.

55488455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55488455 - 2⁴ = 55488439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29390 + ... + 31220.

It is an arithmetic number, because the mean of its divisors is an integer number (2473200).

Almost surely, 2^55488455 is an apocalyptic number.

55488455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55488455 is a deficient number, since it is larger than the sum of its proper divisors (23653945).

55488455 is a wasteful number, since it uses less digits than its factorization.

55488455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its digits is 640000, while the sum is 44.

The square root of 55488455 is about 7449.0573229101. The cubic root of 55488455 is about 381.4177303710.

The spelling of 55488455 in words is "fifty-five million, four hundred eighty-eight thousand, four hundred fifty-five".