55554459 has 32 divisors (see below), whose sum is σ = 79488000. Its totient is φ = 34454784.

The previous prime is 55554383. The next prime is 55554479. The reversal of 55554459 is 95445555.

It is not a de Polignac number, because 55554459 - 2¹¹ = 55552411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55554459.

It is not an unprimeable number, because it can be changed into a prime (55554479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405439 + ... + 405575.

It is an arithmetic number, because the mean of its divisors is an integer number (2484000).

Almost surely, 2^55554459 is an apocalyptic number.

55554459 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55554459 is a deficient number, since it is larger than the sum of its proper divisors (23933541).

55554459 is a wasteful number, since it uses less digits than its factorization.

55554459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its digits is 450000, while the sum is 42.

The square root of 55554459 is about 7453.4863654534. The cubic root of 55554459 is about 381.5689036824.

The spelling of 55554459 in words is "fifty-five million, five hundred fifty-four thousand, four hundred fifty-nine".