55151063205450 has 24 divisors (see below), whose sum is σ = 136774636749888. Its totient is φ = 14706950188080.

The previous prime is 55151063205439. The next prime is 55151063205473. The reversal of 55151063205450 is 5450236015155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183836877202 + ... + 183836877501.

It is an arithmetic number, because the mean of its divisors is an integer number (5698943197912).

Almost surely, 2^{55151063205450} is an apocalyptic number.

55151063205450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55151063205450 is an abundant number, since it is smaller than the sum of its proper divisors (81623573544438).

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

55151063205450 is a wasteful number, since it uses less digits than its factorization.

55151063205450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367673754718 (or 367673754713 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 55151063205450 in words is "fifty-five trillion, one hundred fifty-one billion, sixty-three million, two hundred five thousand, four hundred fifty".