55691498 has 8 divisors (see below), whose sum is σ = 83587140. Its totient is φ = 27829120.

The previous prime is 55691491. The next prime is 55691509. The reversal of 55691498 is 89419655.

It is a happy number.

55691498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50794129 + 4897369 = 7127^2 + 2213^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55691491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593 + ... + 11148.

Almost surely, 2^55691498 is an apocalyptic number.

55691498 is a deficient number, since it is larger than the sum of its proper divisors (27895642).

55691498 is a wasteful number, since it uses less digits than its factorization.

55691498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16632.

The product of its digits is 388800, while the sum is 47.

The square root of 55691498 is about 7462.6736495709. The cubic root of 55691498 is about 381.8823911770.

The spelling of 55691498 in words is "fifty-five million, six hundred ninety-one thousand, four hundred ninety-eight".