27555278053000 has 64 divisors (see below), whose sum is σ = 68272253665200. Its totient is φ = 10373751731200.

The previous prime is 27555278052989. The next prime is 27555278053001. The reversal of 27555278053000 is 35087255572.

It can be written as a sum of positive squares in 8 ways, for example, as 2580051912516 + 24975226140484 = 1606254^2 + 4997522^2 .

It is not an unprimeable number, because it can be changed into a prime (27555278053001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810432355 + ... + 810466354.

Almost surely, 2^{27555278053000} is an apocalyptic number.

27555278053000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27555278053000 is an abundant number, since it is smaller than the sum of its proper divisors (40716975612200).

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

27555278053000 is a wasteful number, since it uses less digits than its factorization.

27555278053000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620898747 (or 1620898733 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 27555278053000 in words is "twenty-seven trillion, five hundred fifty-five billion, two hundred seventy-eight million, fifty-three thousand".