55775342620 has 12 divisors (see below), whose sum is σ = 117128219544. Its totient is φ = 22310137040.

The previous prime is 55775342617. The next prime is 55775342657. The reversal of 55775342620 is 2624357755.

It is a super-2 number, since 2×55775342620² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 1394383546 + ... + 1394383585.

It is an arithmetic number, because the mean of its divisors is an integer number (9760684962).

Almost surely, 2^55775342620 is an apocalyptic number.

It is an amenable number.

55775342620 is an abundant number, since it is smaller than the sum of its proper divisors (61352876924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55775342620 is a wasteful number, since it uses less digits than its factorization.

55775342620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788767140 (or 2788767138 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 46.

The spelling of 55775342620 in words is "fifty-five billion, seven hundred seventy-five million, three hundred forty-two thousand, six hundred twenty".