55551101 has 8 divisors (see below), whose sum is σ = 57451008. Its totient is φ = 53658000.

The previous prime is 55551077. The next prime is 55551103. The reversal of 55551101 is 10115555.

It is a happy number.

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 55551101 - 2²² = 51356797 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 (55551103) 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, 19136 + ... + 21846.

It is an arithmetic number, because the mean of its divisors is an integer number (7181376).

Almost surely, 2^55551101 is an apocalyptic number.

It is an amenable number.

55551101 is a deficient number, since it is larger than the sum of its proper divisors (1899907).

55551101 is a wasteful number, since it uses less digits than its factorization.

55551101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 55551101 is about 7453.2610983381. The cubic root of 55551101 is about 381.5612155255.

Adding to 55551101 its reverse (10115555), we get a palindrome (65666656).

The spelling of 55551101 in words is "fifty-five million, five hundred fifty-one thousand, one hundred one".