55211045402 has 4 divisors (see below), whose sum is σ = 82816568106. Its totient is φ = 27605522700.

The previous prime is 55211045389. The next prime is 55211045413. The reversal of 55211045402 is 20454011255.

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

It can be written as a sum of positive squares in only one way, i.e., 42139467841 + 13071577561 = 205279^2 + 114331^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13802761349 + ... + 13802761352.

Almost surely, 2^55211045402 is an apocalyptic number.

55211045402 is a deficient number, since it is larger than the sum of its proper divisors (27605522704).

55211045402 is a wasteful number, since it uses less digits than its factorization.

55211045402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27605522703.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 55211045402 its reverse (20454011255), we get a palindrome (75665056657).

The spelling of 55211045402 in words is "fifty-five billion, two hundred eleven million, forty-five thousand, four hundred two".