55033402 has 4 divisors (see below), whose sum is σ = 82550106. Its totient is φ = 27516700.

The previous prime is 55033397. The next prime is 55033409. The reversal of 55033402 is 20433055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20433055 = 5 ⋅4086611.

It can be written as a sum of positive squares in only one way, i.e., 45846441 + 9186961 = 6771^2 + 3031^2 .

It is not an unprimeable number, because it can be changed into a prime (55033409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13758349 + ... + 13758352.

Almost surely, 2^55033402 is an apocalyptic number.

55033402 is a deficient number, since it is larger than the sum of its proper divisors (27516704).

55033402 is a wasteful number, since it uses less digits than its factorization.

55033402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27516703.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 55033402 is about 7418.4501076707. The cubic root of 55033402 is about 380.3722160834.

Adding to 55033402 its reverse (20433055), we get a palindrome (75466457).

The spelling of 55033402 in words is "fifty-five million, thirty-three thousand, four hundred two".