55553001 has 16 divisors (see below), whose sum is σ = 84885504. Its totient is φ = 31657104.

The previous prime is 55552993. The next prime is 55553053. The reversal of 55553001 is 10035555.

It is not a de Polignac number, because 55553001 - 2³ = 55552993 is a prime.

It is a super-2 number, since 2×55553001² = 6172271840212002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55553081) 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 15 ways as a sum of consecutive naturals, for example, 4590 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (5305344).

Almost surely, 2^55553001 is an apocalyptic number.

It is an amenable number.

55553001 is a deficient number, since it is larger than the sum of its proper divisors (29332503).

55553001 is a wasteful number, since it uses less digits than its factorization.

55553001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55553001 is about 7453.3885582331. The cubic root of 55553001 is about 381.5655656225.

Adding to 55553001 its reverse (10035555), we get a palindrome (65588556).

The spelling of 55553001 in words is "fifty-five million, five hundred fifty-three thousand, one".