55147473 has 40 divisors (see below), whose sum is σ = 90299880. Its totient is φ = 33384960.

The previous prime is 55147471. The next prime is 55147483. The reversal of 55147473 is 37474155.

It is a happy number.

55147473 is a `hidden beast` number, since 5 + 514 + 74 + 73 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14085009 + 41062464 = 3753^2 + 6408^2 .

It is not a de Polignac number, because 55147473 - 2¹ = 55147471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55147471) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39243 + ... + 40623.

It is an arithmetic number, because the mean of its divisors is an integer number (2257497).

Almost surely, 2^55147473 is an apocalyptic number.

It is an amenable number.

55147473 is a deficient number, since it is larger than the sum of its proper divisors (35152407).

55147473 is a wasteful number, since it uses less digits than its factorization.

55147473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1430 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 55147473 is about 7426.1344587881. The cubic root of 55147473 is about 380.6348414063.

The spelling of 55147473 in words is "fifty-five million, one hundred forty-seven thousand, four hundred seventy-three".