55994455 has 12 divisors (see below), whose sum is σ = 73374552. Its totient is φ = 40682880.

The previous prime is 55994453. The next prime is 55994459. The reversal of 55994455 is 55449955.

It is not a de Polignac number, because 55994455 - 2¹ = 55994453 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55994453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54991 + ... + 55999.

It is an arithmetic number, because the mean of its divisors is an integer number (6114546).

Almost surely, 2^55994455 is an apocalyptic number.

55994455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55994455 is a deficient number, since it is larger than the sum of its proper divisors (17380097).

55994455 is an equidigital number, since it uses as much as digits as its factorization.

55994455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 1025 counting only the distinct ones).

The product of its digits is 810000, while the sum is 46.

The square root of 55994455 is about 7482.9442734795. The cubic root of 55994455 is about 382.5736085146.

The spelling of 55994455 in words is "fifty-five million, nine hundred ninety-four thousand, four hundred fifty-five".