2153511232 has 28 divisors (see below), whose sum is σ = 4420735380. Its totient is φ = 1039625216.

The previous prime is 2153511181. The next prime is 2153511233. The reversal of 2153511232 is 2321153512.

It can be written as a sum of positive squares in 2 ways, for example, as 1464133696 + 689377536 = 38264^2 + 26256^2 .

It is a super-2 number, since 2×2153511232² = 9275221252700315648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2153511197 and 2153511206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153511233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578293 + ... + 582004.

Almost surely, 2^2153511232 is an apocalyptic number.

It is an amenable number.

2153511232 is an abundant number, since it is smaller than the sum of its proper divisors (2267224148).

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

2153511232 is a wasteful number, since it uses less digits than its factorization.

2153511232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160338 (or 1160328 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 2153511232 is about 46405.9396198375. The cubic root of 2153511232 is about 1291.3651057944.

Adding to 2153511232 its reverse (2321153512), we get a palindrome (4474664744).

The spelling of 2153511232 in words is "two billion, one hundred fifty-three million, five hundred eleven thousand, two hundred thirty-two".