55133005 has 4 divisors (see below), whose sum is σ = 66159612. Its totient is φ = 44106400.

The previous prime is 55132993. The next prime is 55133017. The reversal of 55133005 is 50033155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50033155 = 5 ⋅10006631.

It is an interprime number because it is at equal distance from previous prime (55132993) and next prime (55133017).

It can be written as a sum of positive squares in 2 ways, for example, as 10323369 + 44809636 = 3213^2 + 6694^2 .

It is not a de Polignac number, because 55133005 - 2⁷ = 55132877 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513296 + ... + 5513305.

It is an arithmetic number, because the mean of its divisors is an integer number (16539903).

Almost surely, 2^55133005 is an apocalyptic number.

It is an amenable number.

55133005 is a deficient number, since it is larger than the sum of its proper divisors (11026607).

55133005 is a wasteful number, since it uses less digits than its factorization.

55133005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026606.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 55133005 is about 7425.1602676306. The cubic root of 55133005 is about 380.6015518390.

The spelling of 55133005 in words is "fifty-five million, one hundred thirty-three thousand, five".