55650161550 has 48 divisors (see below), whose sum is σ = 138028420080. Its totient is φ = 14838320640.

The previous prime is 55650161527. The next prime is 55650161551. The reversal of 55650161550 is 5516105655.

It is a junction number, because it is equal to n+sod(n) for n = 55650161499 and 55650161508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55650161551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1770774 + ... + 1801926.

It is an arithmetic number, because the mean of its divisors is an integer number (2875592085).

Almost surely, 2^55650161550 is an apocalyptic number.

55650161550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55650161550 is an abundant number, since it is smaller than the sum of its proper divisors (82378258530).

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

55650161550 is a wasteful number, since it uses less digits than its factorization.

55650161550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43077 (or 43072 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55650161550 in words is "fifty-five billion, six hundred fifty million, one hundred sixty-one thousand, five hundred fifty".