55510001 has 8 divisors (see below), whose sum is σ = 59256000. Its totient is φ = 51846480.

The previous prime is 55509997. The next prime is 55510009. The reversal of 55510001 is 10001555.

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

It is a cyclic number.

It is not a de Polignac number, because 55510001 - 2² = 55509997 is a prime.

It is a super-2 number, since 2×55510001² = 6162720422040002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55510009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19226 + ... + 21923.

It is an arithmetic number, because the mean of its divisors is an integer number (7407000).

Almost surely, 2^55510001 is an apocalyptic number.

It is an amenable number.

55510001 is a deficient number, since it is larger than the sum of its proper divisors (3745999).

55510001 is a wasteful number, since it uses less digits than its factorization.

55510001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41239.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 55510001 is about 7450.5034058109. The cubic root of 55510001 is about 381.4670917680.

Adding to 55510001 its reverse (10001555), we get a palindrome (65511556).

It can be divided in two parts, 555 and 10001, that multiplied together give a palindrome (5550555).

The spelling of 55510001 in words is "fifty-five million, five hundred ten thousand, one".