55641157050 has 96 divisors (see below), whose sum is σ = 145794686400. Its totient is φ = 14004264960.

The previous prime is 55641157007. The next prime is 55641157051. The reversal of 55641157050 is 5075114655.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55641157051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 730362 + ... + 802938.

It is an arithmetic number, because the mean of its divisors is an integer number (1518694650).

Almost surely, 2^55641157050 is an apocalyptic number.

55641157050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55641157050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72897343200).

55641157050 is an abundant number, since it is smaller than the sum of its proper divisors (90153529350).

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

55641157050 is a wasteful number, since it uses less digits than its factorization.

55641157050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72880 (or 72875 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 55641157050 in words is "fifty-five billion, six hundred forty-one million, one hundred fifty-seven thousand, fifty".