55157101 has 4 divisors (see below), whose sum is σ = 57059100. Its totient is φ = 53255104.

The previous prime is 55157099. The next prime is 55157107. The reversal of 55157101 is 10175155.

55157101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10175155 = 5 ⋅2035031.

It can be written as a sum of positive squares in 2 ways, for example, as 32604100 + 22553001 = 5710^2 + 4749^2 .

It is a cyclic number.

It is not a de Polignac number, because 55157101 - 2¹ = 55157099 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 (55157107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950956 + ... + 951013.

It is an arithmetic number, because the mean of its divisors is an integer number (14264775).

Almost surely, 2^55157101 is an apocalyptic number.

It is an amenable number.

55157101 is a deficient number, since it is larger than the sum of its proper divisors (1901999).

55157101 is a wasteful number, since it uses less digits than its factorization.

55157101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901998.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 55157101 is about 7426.7826816193. The cubic root of 55157101 is about 380.6569913424.

The spelling of 55157101 in words is "fifty-five million, one hundred fifty-seven thousand, one hundred one".