55403088272 has 20 divisors (see below), whose sum is σ = 122678267136. Its totient is φ = 23744180640.

The previous prime is 55403088271. The next prime is 55403088313. The reversal of 55403088272 is 27288030455.

It is not an unprimeable number, because it can be changed into a prime (55403088271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247335104 + ... + 247335327.

Almost surely, 2^55403088272 is an apocalyptic number.

It is an amenable number.

55403088272 is an abundant number, since it is smaller than the sum of its proper divisors (67275178864).

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

55403088272 is a wasteful number, since it uses less digits than its factorization.

55403088272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494670446 (or 494670440 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 55403088272 in words is "fifty-five billion, four hundred three million, eighty-eight thousand, two hundred seventy-two".