2553643432 has 16 divisors (see below), whose sum is σ = 4788838260. Its totient is φ = 1276619904.

The previous prime is 2553643381. The next prime is 2553643481. The reversal of 2553643432 is 2343463552.

It can be written as a sum of positive squares in 2 ways, for example, as 2479442436 + 74200996 = 49794^2 + 8614^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2553643391 and 2553643400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37818 + ... + 80854.

Almost surely, 2^2553643432 is an apocalyptic number.

It is an amenable number.

2553643432 is a deficient number, since it is larger than the sum of its proper divisors (2235194828).

2553643432 is a wasteful number, since it uses less digits than its factorization.

2553643432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50460 (or 50456 counting only the distinct ones).

The product of its digits is 259200, while the sum is 37.

The square root of 2553643432 is about 50533.5871673484. The cubic root of 2553643432 is about 1366.8475711615.

The spelling of 2553643432 in words is "two billion, five hundred fifty-three million, six hundred forty-three thousand, four hundred thirty-two".