55469807 has 4 divisors (see below), whose sum is σ = 55605840. Its totient is φ = 55333776.

The previous prime is 55469789. The next prime is 55469809. The reversal of 55469807 is 70896455.

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 55469807 - 2¹⁰ = 55468783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55469809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67403 + ... + 68220.

It is an arithmetic number, because the mean of its divisors is an integer number (13901460).

Almost surely, 2^55469807 is an apocalyptic number.

55469807 is a deficient number, since it is larger than the sum of its proper divisors (136033).

55469807 is a wasteful number, since it uses less digits than its factorization.

55469807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136032.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 55469807 is about 7447.8055157207. The cubic root of 55469807 is about 381.3749979096.

The spelling of 55469807 in words is "fifty-five million, four hundred sixty-nine thousand, eight hundred seven".