55362691 has 4 divisors (see below), whose sum is σ = 55379632. Its totient is φ = 55345752.

The previous prime is 55362673. The next prime is 55362701. The reversal of 55362691 is 19626355.

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 55362691 - 2¹⁷ = 55231619 is a prime.

It is a super-2 number, since 2×55362691² = 6130055109522962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55362691.

It is not an unprimeable number, because it can be changed into a prime (55362611) 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, 1836 + ... + 10681.

It is an arithmetic number, because the mean of its divisors is an integer number (13844908).

Almost surely, 2^55362691 is an apocalyptic number.

55362691 is a deficient number, since it is larger than the sum of its proper divisors (16941).

55362691 is a wasteful number, since it uses less digits than its factorization.

55362691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940.

The product of its digits is 48600, while the sum is 37.

The square root of 55362691 is about 7440.6109292181. The cubic root of 55362691 is about 381.1293526338.

The spelling of 55362691 in words is "fifty-five million, three hundred sixty-two thousand, six hundred ninety-one".