2155023552 has 84 divisors (see below), whose sum is σ = 6267371768. Its totient is φ = 653030400.

The previous prime is 2155023551. The next prime is 2155023589. The reversal of 2155023552 is 2553205512.

It is not an unprimeable number, because it can be changed into a prime (2155023551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23149 + ... + 69612.

Almost surely, 2^2155023552 is an apocalyptic number.

2155023552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2155023552 is an abundant number, since it is smaller than the sum of its proper divisors (4112348216).

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

2155023552 is a wasteful number, since it uses less digits than its factorization.

2155023552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92798 (or 92777 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2155023552 is about 46422.2312259977. The cubic root of 2155023552 is about 1291.6673254542.

The spelling of 2155023552 in words is "two billion, one hundred fifty-five million, twenty-three thousand, five hundred fifty-two".