2156552133250 has 64 divisors (see below), whose sum is σ = 4085231436000. Its totient is φ = 852389068800.

The previous prime is 2156552133233. The next prime is 2156552133259. The reversal of 2156552133250 is 523312556512.

It can be written as a sum of positive squares in 16 ways, for example, as 629970801849 + 1526581331401 = 793707^2 + 1235549^2 .

It is not an unprimeable number, because it can be changed into a prime (2156552133259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7039266 + ... + 7339234.

Almost surely, 2^{2156552133250} is an apocalyptic number.

2156552133250 is a deficient number, since it is larger than the sum of its proper divisors (1928679302750).

2156552133250 is a wasteful number, since it uses less digits than its factorization.

2156552133250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300328 (or 300318 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

Adding to 2156552133250 its reverse (523312556512), we get a palindrome (2679864689762).

The spelling of 2156552133250 in words is "two trillion, one hundred fifty-six billion, five hundred fifty-two million, one hundred thirty-three thousand, two hundred fifty".