55805001 has 8 divisors (see below), whose sum is σ = 85036224. Its totient is φ = 31888560.

The previous prime is 55804993. The next prime is 55805003. The reversal of 55805001 is 10050855.

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

It is not a de Polignac number, because 55805001 - 2³ = 55804993 is a prime.

It is a super-2 number, since 2×55805001² = 6228396273220002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55805003) 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 7 ways as a sum of consecutive naturals, for example, 1328670 + ... + 1328711.

It is an arithmetic number, because the mean of its divisors is an integer number (10629528).

Almost surely, 2^55805001 is an apocalyptic number.

It is an amenable number.

55805001 is a deficient number, since it is larger than the sum of its proper divisors (29231223).

55805001 is a wasteful number, since it uses less digits than its factorization.

55805001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657391.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 55805001 is about 7470.2744929487. The cubic root of 55805001 is about 382.1416490851.

Adding to 55805001 its reverse (10050855), we get a palindrome (65855856).

The spelling of 55805001 in words is "fifty-five million, eight hundred five thousand, one".