2155463000 has 32 divisors (see below), whose sum is σ = 5043785760. Its totient is φ = 862184800.

The previous prime is 2155462987. The next prime is 2155463003. The reversal of 2155463000 is 3645512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155463003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076732 + ... + 1078731.

It is an arithmetic number, because the mean of its divisors is an integer number (157618305).

Almost surely, 2^2155463000 is an apocalyptic number.

2155463000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155463000 is an abundant number, since it is smaller than the sum of its proper divisors (2888322760).

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

2155463000 is a wasteful number, since it uses less digits than its factorization.

2155463000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155484 (or 2155470 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2155463000 is about 46426.9641480035. The cubic root of 2155463000 is about 1291.7551175410.

The spelling of 2155463000 in words is "two billion, one hundred fifty-five million, four hundred sixty-three thousand".