55115033 has 4 divisors (see below), whose sum is σ = 55355940. Its totient is φ = 54874128.

The previous prime is 55115023. The next prime is 55115041. The reversal of 55115033 is 33051155.

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 48622729 + 6492304 = 6973^2 + 2548^2 .

It is a cyclic number.

It is not a de Polignac number, because 55115033 - 2⁴ = 55115017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55115023) 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, 120110 + ... + 120567.

It is an arithmetic number, because the mean of its divisors is an integer number (13838985).

Almost surely, 2^55115033 is an apocalyptic number.

It is an amenable number.

55115033 is a deficient number, since it is larger than the sum of its proper divisors (240907).

55115033 is a wasteful number, since it uses less digits than its factorization.

55115033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240906.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 55115033 is about 7423.9499594219. The cubic root of 55115033 is about 380.5601917713.

Adding to 55115033 its reverse (33051155), we get a palindrome (88166188).

The spelling of 55115033 in words is "fifty-five million, one hundred fifteen thousand, thirty-three".