55830691 has 8 divisors (see below), whose sum is σ = 63859040. Its totient is φ = 47815488.

The previous prime is 55830673. The next prime is 55830757. The reversal of 55830691 is 19603855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55830691 - 2¹³ = 55822499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55830691.

It is not an unprimeable number, because it can be changed into a prime (55830611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8785 + ... + 13741.

It is an arithmetic number, because the mean of its divisors is an integer number (7982380).

Almost surely, 2^55830691 is an apocalyptic number.

55830691 is a deficient number, since it is larger than the sum of its proper divisors (8028349).

55830691 is a wasteful number, since it uses less digits than its factorization.

55830691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55830691 is about 7471.9937767640. The cubic root of 55830691 is about 382.2002801081.

The spelling of 55830691 in words is "fifty-five million, eight hundred thirty thousand, six hundred ninety-one".