55690499 has 4 divisors (see below), whose sum is σ = 56603520. Its totient is φ = 54777480.

The previous prime is 55690471. The next prime is 55690507. The reversal of 55690499 is 99409655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55690499 - 2¹² = 55686403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55690099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456419 + ... + 456540.

It is an arithmetic number, because the mean of its divisors is an integer number (14150880).

Almost surely, 2^55690499 is an apocalyptic number.

55690499 is a deficient number, since it is larger than the sum of its proper divisors (913021).

55690499 is an equidigital number, since it uses as much as digits as its factorization.

55690499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913020.

The product of its (nonzero) digits is 437400, while the sum is 47.

The square root of 55690499 is about 7462.6067161549. The cubic root of 55690499 is about 381.8801077477.

The spelling of 55690499 in words is "fifty-five million, six hundred ninety thousand, four hundred ninety-nine".