55030001 has 4 divisors (see below), whose sum is σ = 59263092. Its totient is φ = 50796912.

The previous prime is 55029977. The next prime is 55030009. The reversal of 55030001 is 10003055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35093776 + 19936225 = 5924^2 + 4465^2 .

It is a cyclic number.

It is not a de Polignac number, because 55030001 - 2⁶ = 55029937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55030009) 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, 2116526 + ... + 2116551.

It is an arithmetic number, because the mean of its divisors is an integer number (14815773).

Almost surely, 2^55030001 is an apocalyptic number.

It is an amenable number.

55030001 is a deficient number, since it is larger than the sum of its proper divisors (4233091).

55030001 is a wasteful number, since it uses less digits than its factorization.

55030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233090.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 55030001 is about 7418.2208783508. The cubic root of 55030001 is about 380.3643804024.

Adding to 55030001 its reverse (10003055), we get a palindrome (65033056).

The spelling of 55030001 in words is "fifty-five million, thirty thousand, one".