55041591000 has 512 divisors, whose sum is σ = 194520268800. Its totient is φ = 12841920000.

The previous prime is 55041590993. The next prime is 55041591047. The reversal of 55041591000 is 19514055.

It is a super-2 number, since 2×55041591000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 112100755 + ... + 112101245.

It is an arithmetic number, because the mean of its divisors is an integer number (379922400).

Almost surely, 2^55041591000 is an apocalyptic number.

55041591000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55041591000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97260134400).

55041591000 is an abundant number, since it is smaller than the sum of its proper divisors (139478677800).

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

55041591000 is a wasteful number, since it uses less digits than its factorization.

55041591000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 55041591000 in words is "fifty-five billion, forty-one million, five hundred ninety-one thousand".