55031015000 has 160 divisors (see below), whose sum is σ = 139254986640. Its totient is φ = 20260800000.

The previous prime is 55031014999. The next prime is 55031015051. The reversal of 55031015000 is 51013055.

It is a happy number.

It is a super-2 number, since 2×55031015000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27363995 + ... + 27366005.

Almost surely, 2^55031015000 is an apocalyptic number.

55031015000 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 55031015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69627493320).

55031015000 is an abundant number, since it is smaller than the sum of its proper divisors (84223971640).

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

55031015000 is a wasteful number, since it uses less digits than its factorization.

55031015000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

Adding to 55031015000 its reverse (51013055), we get a palindrome (55082028055).

The spelling of 55031015000 in words is "fifty-five billion, thirty-one million, fifteen thousand".