2155015552 has 16 divisors (see below), whose sum is σ = 4293195300. Its totient is φ = 1077507712.

The previous prime is 2155015517. The next prime is 2155015571. The reversal of 2155015552 is 2555105512.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8417902 + ... + 8418157.

Almost surely, 2^2155015552 is an apocalyptic number.

It is an amenable number.

2155015552 is a deficient number, since it is larger than the sum of its proper divisors (2138179748).

2155015552 is an equidigital number, since it uses as much as digits as its factorization.

2155015552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16836073 (or 16836061 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

The square root of 2155015552 is about 46422.1450603050. The cubic root of 2155015552 is about 1291.6657271188.

The spelling of 2155015552 in words is "two billion, one hundred fifty-five million, fifteen thousand, five hundred fifty-two".