55643067137450 has 96 divisors (see below), whose sum is σ = 115655708310912. Its totient is φ = 19784699424000.

The previous prime is 55643067137417. The next prime is 55643067137479. The reversal of 55643067137450 is 5473176034655.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12035321 + ... + 16004220.

It is an arithmetic number, because the mean of its divisors is an integer number (1204746961572).

Almost surely, 2^{55643067137450} is an apocalyptic number.

55643067137450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55643067137450 is an abundant number, since it is smaller than the sum of its proper divisors (60012641173462).

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

55643067137450 is a wasteful number, since it uses less digits than its factorization.

55643067137450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28039680 (or 28039675 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 56.

The spelling of 55643067137450 in words is "fifty-five trillion, six hundred forty-three billion, sixty-seven million, one hundred thirty-seven thousand, four hundred fifty".