55571220602 has 4 divisors (see below), whose sum is σ = 83356830906. Its totient is φ = 27785610300.

The previous prime is 55571220587. The next prime is 55571220619. The reversal of 55571220602 is 20602217555.

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., 45543401281 + 10027819321 = 213409^2 + 100139^2 .

It is a super-2 number, since 2×55571220602² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13892805149 + ... + 13892805152.

Almost surely, 2^55571220602 is an apocalyptic number.

55571220602 is a deficient number, since it is larger than the sum of its proper divisors (27785610304).

55571220602 is a wasteful number, since it uses less digits than its factorization.

55571220602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27785610303.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 55571220602 in words is "fifty-five billion, five hundred seventy-one million, two hundred twenty thousand, six hundred two".