2155031252000 has 96 divisors (see below), whose sum is σ = 5776267521024. Its totient is φ = 783647712000.

The previous prime is 2155031251993. The next prime is 2155031252071. The reversal of 2155031252000 is 2521305512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24444992 + ... + 24532991.

It is an arithmetic number, because the mean of its divisors is an integer number (60169453344).

Almost surely, 2^{2155031252000} is an apocalyptic number.

2155031252000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155031252000 is an abundant number, since it is smaller than the sum of its proper divisors (3621236269024).

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

2155031252000 is a wasteful number, since it uses less digits than its factorization.

2155031252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48978019 (or 48978001 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 2155031252000 its reverse (2521305512), we get a palindrome (2157552557512).

The spelling of 2155031252000 in words is "two trillion, one hundred fifty-five billion, thirty-one million, two hundred fifty-two thousand".