55277780030 has 16 divisors (see below), whose sum is σ = 108545459184. Its totient is φ = 20101010880.

The previous prime is 55277780009. The next prime is 55277780039. The reversal of 55277780030 is 3008777255.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277780039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251262527 + ... + 251262746.

It is an arithmetic number, because the mean of its divisors is an integer number (6784091199).

Almost surely, 2^55277780030 is an apocalyptic number.

55277780030 is a deficient number, since it is larger than the sum of its proper divisors (53267679154).

55277780030 is a wasteful number, since it uses less digits than its factorization.

55277780030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502525291.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 55277780030 in words is "fifty-five billion, two hundred seventy-seven million, seven hundred eighty thousand, thirty".