55554385 has 32 divisors (see below), whose sum is σ = 76204800. Its totient is φ = 38615040.

The previous prime is 55554383. The next prime is 55554479. The reversal of 55554385 is 58345555.

It is not a de Polignac number, because 55554385 - 2¹ = 55554383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55554383) 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, 65796 + ... + 66634.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^55554385 is an apocalyptic number.

It is an amenable number.

55554385 is a deficient number, since it is larger than the sum of its proper divisors (20650415).

55554385 is a wasteful number, since it uses less digits than its factorization.

55554385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921.

The product of its digits is 300000, while the sum is 40.

The square root of 55554385 is about 7453.4814013319. The cubic root of 55554385 is about 381.5687342624.

The spelling of 55554385 in words is "fifty-five million, five hundred fifty-four thousand, three hundred eighty-five".