55030471 has 4 divisors (see below), whose sum is σ = 55060000. Its totient is φ = 55000944.

The previous prime is 55030463. The next prime is 55030477. The reversal of 55030471 is 17403055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17403055 = 5 ⋅3480611.

It is a cyclic number.

It is not a de Polignac number, because 55030471 - 2³ = 55030463 is a prime.

It is a super-3 number, since 3×55030471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55030477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11766 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (13765000).

Almost surely, 2^55030471 is an apocalyptic number.

55030471 is a deficient number, since it is larger than the sum of its proper divisors (29529).

55030471 is a wasteful number, since it uses less digits than its factorization.

55030471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29528.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55030471 is about 7418.2525570379. The cubic root of 55030471 is about 380.3654632708.

The spelling of 55030471 in words is "fifty-five million, thirty thousand, four hundred seventy-one".