2155054128 has 20 divisors (see below), whose sum is σ = 5567223288. Its totient is φ = 718351360.

The previous prime is 2155054093. The next prime is 2155054163. The reversal of 2155054128 is 8214505512.

It is an interprime number because it is at equal distance from previous prime (2155054093) and next prime (2155054163).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22448433 + ... + 22448528.

Almost surely, 2^2155054128 is an apocalyptic number.

It is an amenable number.

2155054128 is an abundant number, since it is smaller than the sum of its proper divisors (3412169160).

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

2155054128 is a wasteful number, since it uses less digits than its factorization.

2155054128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44896972 (or 44896966 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 2155054128 is about 46422.5605498016. The cubic root of 2155054128 is about 1291.6734342557.

The spelling of 2155054128 in words is "two billion, one hundred fifty-five million, fifty-four thousand, one hundred twenty-eight".