55474045 has 16 divisors (see below), whose sum is σ = 75779712. Its totient is φ = 38589760.

The previous prime is 55474039. The next prime is 55474061. The reversal of 55474045 is 54047455.

It is not a de Polignac number, because 55474045 - 2¹⁵ = 55441277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55474045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20662 + ... + 23191.

It is an arithmetic number, because the mean of its divisors is an integer number (4736232).

Almost surely, 2^55474045 is an apocalyptic number.

55474045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55474045 is a deficient number, since it is larger than the sum of its proper divisors (20305667).

55474045 is a wasteful number, since it uses less digits than its factorization.

55474045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43892.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 55474045 is about 7448.0900236235. The cubic root of 55474045 is about 381.3847102569.

The spelling of 55474045 in words is "fifty-five million, four hundred seventy-four thousand, forty-five".