55166101 has 4 divisors (see below), whose sum is σ = 58069600. Its totient is φ = 52262604.

The previous prime is 55166087. The next prime is 55166141. The reversal of 55166101 is 10166155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55166101 - 2¹³ = 55157909 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 (55166141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451721 + ... + 1451758.

It is an arithmetic number, because the mean of its divisors is an integer number (14517400).

Almost surely, 2^55166101 is an apocalyptic number.

It is an amenable number.

55166101 is a deficient number, since it is larger than the sum of its proper divisors (2903499).

55166101 is a wasteful number, since it uses less digits than its factorization.

55166101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903498.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 55166101 is about 7427.3885720353. The cubic root of 55166101 is about 380.6776941866.

The spelling of 55166101 in words is "fifty-five million, one hundred sixty-six thousand, one hundred one".