55430727 has 16 divisors (see below), whose sum is σ = 85370112. Its totient is φ = 31617920.

The previous prime is 55430717. The next prime is 55430731. The reversal of 55430727 is 72703455.

It is a cyclic number.

It is not a de Polignac number, because 55430727 - 2¹⁴ = 55414343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55430717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48843 + ... + 49964.

It is an arithmetic number, because the mean of its divisors is an integer number (5335632).

Almost surely, 2^55430727 is an apocalyptic number.

55430727 is a deficient number, since it is larger than the sum of its proper divisors (29939385).

55430727 is a wasteful number, since it uses less digits than its factorization.

55430727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98838.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 55430727 is about 7445.1814618584. The cubic root of 55430727 is about 381.2854138204.

The spelling of 55430727 in words is "fifty-five million, four hundred thirty thousand, seven hundred twenty-seven".