55162001 has 4 divisors (see below), whose sum is σ = 55186404. Its totient is φ = 55137600.

The previous prime is 55161979. The next prime is 55162007. The reversal of 55162001 is 10026155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10026155 = 5 ⋅2005231.

It can be written as a sum of positive squares in 2 ways, for example, as 179776 + 54982225 = 424^2 + 7415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55162001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55162007) 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, 8420 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (13796601).

Almost surely, 2^55162001 is an apocalyptic number.

It is an amenable number.

55162001 is a deficient number, since it is larger than the sum of its proper divisors (24403).

55162001 is a wasteful number, since it uses less digits than its factorization.

55162001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24402.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 55162001 is about 7427.1125614198. The cubic root of 55162001 is about 380.6682631702.

Adding to 55162001 its reverse (10026155), we get a palindrome (65188156).

The spelling of 55162001 in words is "fifty-five million, one hundred sixty-two thousand, one".