54517881357240 has 128 divisors (see below), whose sum is σ = 187080568565760. Its totient is φ = 12450422145024.

The previous prime is 54517881357239. The next prime is 54517881357259. The reversal of 54517881357240 is 4275318871545.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27176424 + ... + 29113463.

It is an arithmetic number, because the mean of its divisors is an integer number (1461566941920).

Almost surely, 2^{54517881357240} is an apocalyptic number.

It is an amenable number.

54517881357240 is an abundant number, since it is smaller than the sum of its proper divisors (132562687208520).

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

54517881357240 is a wasteful number, since it uses less digits than its factorization.

54517881357240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56291061 (or 56291057 counting only the distinct ones).

The product of its (nonzero) digits is 37632000, while the sum is 60.

The spelling of 54517881357240 in words is "fifty-four trillion, five hundred seventeen billion, eight hundred eighty-one million, three hundred fifty-seven thousand, two hundred forty".