27750000054 has 32 divisors (see below), whose sum is σ = 63433944576. Its totient is φ = 7927899840.

The previous prime is 27750000053. The next prime is 27750000073. The reversal of 27750000054 is 45000005772.

It is a junction number, because it is equal to n+sod(n) for n = 27749999976 and 27750000030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750000053) 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 15 ways as a sum of consecutive naturals, for example, 691159 + ... + 730205.

It is an arithmetic number, because the mean of its divisors is an integer number (1982310768).

Almost surely, 2^27750000054 is an apocalyptic number.

27750000054 is an abundant number, since it is smaller than the sum of its proper divisors (35683944522).

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

27750000054 is a wasteful number, since it uses less digits than its factorization.

27750000054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55980.

The product of its (nonzero) digits is 9800, while the sum is 30.

The spelling of 27750000054 in words is "twenty-seven billion, seven hundred fifty million, fifty-four", and thus it is an aban number.