2159055252 has 18 divisors (see below), whose sum is σ = 5457611978. Its totient is φ = 719685072.

The previous prime is 2159055221. The next prime is 2159055257. The reversal of 2159055252 is 2525509512.

2159055252 is a `hidden beast` number, since 2 + 1 + 59 + 0 + 552 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2109013776 + 50041476 = 45924^2 + 7074^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 59973757 = 2159055252 / (2 + 1 + 5 + 9 + 0 + 5 + 5 + 2 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159055257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29986843 + ... + 29986914.

Almost surely, 2^2159055252 is an apocalyptic number.

It is an amenable number.

2159055252 is an abundant number, since it is smaller than the sum of its proper divisors (3298556726).

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

2159055252 is a wasteful number, since it uses less digits than its factorization.

2159055252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59973767 (or 59973762 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 2159055252 is about 46465.6351726736. The cubic root of 2159055252 is about 1292.4723237704.

The spelling of 2159055252 in words is "two billion, one hundred fifty-nine million, fifty-five thousand, two hundred fifty-two".