55400442033 has 8 divisors (see below), whose sum is σ = 77078875968. Its totient is φ = 35327818064.

The previous prime is 55400442029. The next prime is 55400442043. The reversal of 55400442033 is 33024400455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55400442033 - 2² = 55400442029 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55400442043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401452410 + ... + 401452547.

It is an arithmetic number, because the mean of its divisors is an integer number (9634859496).

Almost surely, 2^55400442033 is an apocalyptic number.

It is an amenable number.

55400442033 is a deficient number, since it is larger than the sum of its proper divisors (21678433935).

55400442033 is a wasteful number, since it uses less digits than its factorization.

55400442033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802904983.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 55400442033 its reverse (33024400455), we get a palindrome (88424842488).

The spelling of 55400442033 in words is "fifty-five billion, four hundred million, four hundred forty-two thousand, thirty-three".