55247971073400 has 144 divisors (see below), whose sum is σ = 212046974739600. Its totient is φ = 12628107671040.

The previous prime is 55247971073377. The next prime is 55247971073423. The reversal of 55247971073400 is 437017974255.

55247971073400 is a `hidden beast` number, since 5 + 5 + 2 + 47 + 97 + 107 + 3 + 400 = 666.

It is an interprime number because it is at equal distance from previous prime (55247971073377) and next prime (55247971073423).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2192367205 + ... + 2192392404.

Almost surely, 2^{55247971073400} is an apocalyptic number.

55247971073400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55247971073400 is an abundant number, since it is smaller than the sum of its proper divisors (156799003666200).

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

55247971073400 is a wasteful number, since it uses less digits than its factorization.

55247971073400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384759638 (or 4384759626 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The spelling of 55247971073400 in words is "fifty-five trillion, two hundred forty-seven billion, nine hundred seventy-one million, seventy-three thousand, four hundred".