54247043990 has 32 divisors (see below), whose sum is σ = 102879369216. Its totient is φ = 20553873120.

The previous prime is 54247043971. The next prime is 54247043993. The reversal of 54247043990 is 9934074245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54247043993) 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, 1121246 + ... + 1168625.

It is an arithmetic number, because the mean of its divisors is an integer number (3214980288).

Almost surely, 2^54247043990 is an apocalyptic number.

54247043990 is a deficient number, since it is larger than the sum of its proper divisors (48632325226).

54247043990 is a wasteful number, since it uses less digits than its factorization.

54247043990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290004.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 54247043990 in words is "fifty-four billion, two hundred forty-seven million, forty-three thousand, nine hundred ninety".